Children perform during a school nativity show as it is filmed for parents at Heath Mount School in Watton at Stone in Hertfordshire, Britain, November 26, 2020. REUTERS/Andrew Couldridge

Children perform a school nativity show as it is filmed for parents at Heath Mount School in Watton at Stone in Hertfordshire, Britain, November 26, 2020. REUTERS/Andrew Couldridge

Children measure the distance between microphones before a school nativity show is filmed for parents at Heath Mount School in Watton at Stone in Hertfordshire, Britain, November 26, 2020. REUTERS/Andrew Couldridge

French anaesthesiologist Caroline Tesse, 34, walks with her children Margaux and Louis to school in Villeneuve d'Ascq after returning home from a four-day shift at the Intensive Care Unit (ICU) where patients suffering from the coronavirus disease (COVID-19) are treated at Cambrai hospital, France, November 17, 2020. Picture taken, November 17, 2020. REUTERS/Pascal Rossignol

Sierra Leonean musician Emmerson Bockarie watches a group of children playing football at his childhood school in the Wilberforce neighborhood of Freetown, Sierra Leone October 31, 2020. Picture taken October 31, 2020. REUTERS/Cooper Inveen

A student is seen in a classroom of a makeshift school that the children of Mexican drug lord Joaquin "El Chapo" Guzman helped to build near the city of Culiacan for families who have no access to online classes during the coronavirus disease (COVID-19) outbreak, in Culiacan, Mexico November 3, 2020. Picture taken November 3, 2020. REUTERS/Stringer

A student is seen in a classroom of a makeshift school that the children of Mexican drug lord Joaquin "El Chapo" Guzman helped to build near the city of Culiacan for families who have no access to online classes during the coronavirus disease (COVID-19) outbreak, in Culiacan, Mexico November 3, 2020. Picture taken November 3, 2020. REUTERS/Stringer

Students are seen in a classroom of a makeshift school that the children of Mexican drug lord Joaquin "El Chapo" Guzman helped to build near the city of Culiacan for families who have no access to online classes during the coronavirus disease (COVID-19) outbreak, in Culiacan, Mexico November 3, 2020. Picture taken November 3, 2020. REUTERS/Stringer

A teacher looks after their students in a classroom of a makeshift school that the children of Mexican drug lord Joaquin "El Chapo" Guzman helped to build near the city of Culiacan for families who have no access to online classes during the coronavirus disease (COVID-19) outbreak, in Culiacan, Mexico November 3, 2020. Picture taken November 3, 2020. REUTERS/Stringer

A teacher looks after their students in a classroom of a makeshift school that the children of Mexican drug lord Joaquin "El Chapo" Guzman helped to build near the city of Culiacan for families who have no access to online classes during the coronavirus disease (COVID-19) outbreak, in Culiacan, Mexico November 3, 2020. Picture taken November 3, 2020. REUTERS/Stringer

School children cross a makeshift bridge after heavy rains in Thembisa, in the East Rand, South Africa, November 11, 2020. REUTERS/Siphiwe Sibeko

Co-founder of Wikipedia, Jimmy Wales, speaks at the Ministry of Fun Santa School, as it develops an online app for children to speak with Santa during the Christmas season, as the continuation of the coronavirus disease (COVID-19) pandemic means most in-person Santa's Grotto experiences will have to be cancelled, London, Britain, November 10, 2020. REUTERS/Toby Melville

A face mask and hand sanitiser are seen on a desk as students take part in a training session at the Ministry of Fun Santa School, as it develops an online app for children to speak with Santa during the Christmas season, as the continuation of the coronavirus disease (COVID-19) pandemic means most in-person Santa's Grotto experiences will have to be cancelled, London, Britain, November 10, 2020. REUTERS/Toby Melville

Students take part in a training session at the Ministry of Fun Santa School, as it develops an online app for children to speak with Santa during the Christmas season, as the continuation of the coronavirus disease (COVID-19) pandemic means most in-person Santa's Grotto experiences will have to be cancelled, London, Britain, November 10, 2020. REUTERS/Toby Melville

Students take part in a training session at the Ministry of Fun Santa School, as it develops an online app for children to speak with Santa during the Christmas season, as the continuation of the coronavirus disease (COVID-19) pandemic means most in-person Santa's Grotto experiences will have to be cancelled, London, Britain, November 10, 2020. REUTERS/Toby Melville

Students take part in a training session at the Ministry of Fun Santa School, as it develops an online app for children to speak with Santa during the Christmas season, as the continuation of the coronavirus disease (COVID-19) pandemic means most in-person Santa's Grotto experiences will have to be cancelled, London, Britain, November 10, 2020. REUTERS/Toby Melville

Students take part in a training session at the Ministry of Fun Santa School, as it develops an online app for children to speak with Santa during the Christmas season, as the continuation of the coronavirus disease (COVID-19) pandemic means most in-person Santa's Grotto experiences will have to be cancelled, London, Britain, November 10, 2020. REUTERS/Toby Melville

A student trains with a computer and webcam in the Grotto at the Ministry of Fun Santa School, as it develops an online app for children to speak with Santa during the Christmas season, as the continuation of the coronavirus disease (COVID-19) pandemic means most in-person Santa's Grotto experiences will have to be cancelled, London, Britain, November 10, 2020. REUTERS/Toby Melville

A student trains with a computer and webcam in the Grotto at the Ministry of Fun Santa School, as it develops an online app for children to speak with Santa during the Christmas season, as the continuation of the coronavirus disease (COVID-19) pandemic means most in-person Santa's Grotto experiences will have to be cancelled, London, Britain, November 10, 2020. REUTERS/Toby Melville

Children observe a helicopter landing at a school, being used as a temporary shelter for people from neighboring villages affected from the mudslides caused by heavy rains brought by Storm Eta, in the village of Santa Elena, Alta Verapaz, Guatemala November 8, 2020. REUTERS/Luis Echeverria

Highfield Community Shop owner Dharm Patel makes up lunch packs in his shop, before being given to children and families during the school holidays, as the spread of the coronavirus disease (COVID-19) continues, in Hemel Hempstead, Britain October 28, 2020. REUTERS/Paul Childs

Highfield Community Shop owner Dharm Patel makes up lunch packs in his shop, before being given to children and families during the school holidays, as the spread of the coronavirus disease (COVID-19) continues, in Hemel Hempstead, Britain October 28, 2020. REUTERS/Paul Childs

Tengku Puteri, a royal descendant, and her husband Mohamad Fairoze leave their house to send their children Ashley and Andriy to school, in Singapore October 13, 2020. Picture taken October 13, 2020. REUTERS/Edgar Su

The view shows an art installation, made out of 10.000 origami angels suspended from the ceiling and created by school children during the lockdown, amid the outbreak of the coronavirus disease (COVID-19), in Ripon Cathedral, in Ripon, Britain October 26, 2020. REUTERS/Lee Smith

A person gestures under an art installation, made out of 10.000 origami angels created by school children, amid the outbreak of the coronavirus disease (COVID-19), in Ripon Cathedral, in Ripon, Britain October 26, 2020. REUTERS/Lee Smith

Reverend Olivia Lambert poses in Ripon Cathedral, where an art installation, made out of 10.000 origami angels created by school children, is suspended from the ceiling, amid the outbreak of the coronavirus disease (COVID-19), in Ripon, Britain October 26, 2020. REUTERS/Lee Smith

People sit under an art installation, made out of 10.000 origami angels created by school children, amid the outbreak of the coronavirus disease (COVID-19), in Ripon Cathedral, in Ripon, Britain October 26, 2020. REUTERS/Lee Smith

A person stands in front of an art installation, made out of 10.000 origami angels created by school children, amid the outbreak of the coronavirus disease (COVID-19), in Ripon Cathedral, in Ripon, Britain October 26, 2020. REUTERS/Lee Smith

People are seen in silhouettes with an art installation, made out of 10.000 origami angels created by school children, in the background, amid the outbreak of the coronavirus disease (COVID-19), in Ripon Cathedral, in Ripon, Britain October 26, 2020. REUTERS/Lee Smith

A person stands next to food provided by Men Unite and Hanley Town Football Club for children and families during the school holidays, as the spread of the coronavirus disease (COVID-19) continues, in Stoke-on-Trent, Britain October 26, 2020. REUTERS/Carl Recine

Food provided by Men Unite and Hanley Town Football Club is seen before being given to children and families during the school holidays, as the spread of the coronavirus disease (COVID-19) continues, in Stoke-on-Trent, Britain October 26, 2020. REUTERS/Carl Recine

A hand sanitizer is seen next to food provided by Men Unite and Hanley Town Football Club before being given to children and families during the school holidays, as the spread of the coronavirus disease (COVID-19) continues, in Stoke-on-Trent, Britain October 26, 2020. REUTERS/Carl Recine

Food provided by Men Unite and Hanley Town Football Club is seen before being given to children and families during the school holidays, as the spread of the coronavirus disease (COVID-19) continues, in Stoke-on-Trent, Britain October 26, 2020. REUTERS/Carl Recine

Men Unite and Hanley Town Football Club provide free meals to children and families during the school holidays, as the spread of the coronavirus disease (COVID-19) continues, in Stoke-on-Trent, Britain October 26, 2020. REUTERS/Carl Recine

Security forces are seen as schoolchildren, their parents and teachers hold a protest after gunmen opened fire at a school, killing at least six children as authorities claim, in Kumba, Cameroon October 25, 2020. REUTERS/Josiane Kouagheu

Schoolchildren, their parents and teachers hold a protest after gunmen opened fire at a school, killing at least six children as authorities claim, in Kumba, Cameroon October 25, 2020. REUTERS/Josiane Kouagheu TPX IMAGES OF THE DAY

People hold a banner as schoolchildren, their parents and teachers hold a protest after gunmen opened fire at a school, killing at least six children as authorities claim, in Kumba, Cameroon October 25, 2020. REUTERS/Josiane Kouagheu

Schoolchildren, their parents and teachers hold a protest after gunmen opened fire at a school, killing at least six children as authorities claim, in Kumba, Cameroon October 25, 2020. REUTERS/Josiane Kouagheu

People hold banners during a protest demanding free school meals for children in England, in London, Britain October 24, 2020. REUTERS/Peter Nicholls

A boy holds a banner during a protest demanding free school meals for children in England, in London, Britain October 24, 2020. REUTERS/Peter Nicholls

School children wearing face masks walk near the Roman Forum as Italy is facing a surge in coronavirus disease (COVID-19) infections, in Rome, Italy October 22, 2020. REUTERS/Guglielmo Mangiapane TPX IMAGES OF THE DAY

Amish children are seen outside a school building in the countryside of Mesopotamia, Ohio, U.S., October 1, 2020. Picture taken October 1, 2020. REUTERS/Shannon Stapleton

A pre-school teacher wears a protective face mask while sitting next to children at their kindergarten after it reopened as Israel began easing a second nationwide coronavirus disease (COVID-19) lockdown, in Tel Aviv, Israel October 18, 2020. REUTERS/Amir Cohen

French Education Minister Jean-Michel Blanquer and Brigitte Macron stand as French novelist Karine Tuil gives a dictation to school children in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

Brigitte Macron greets school children after giving a dictation in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

French Education Minister Jean-Michel Blanquer gives a dictation to school children in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

French Education Minister Jean-Michel Blanquer gives a dictation to school children in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

French Education Minister Jean-Michel Blanquer gives a dictation to school children in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

French Education Minister Jean-Michel Blanquer gives a dictation to school children in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

Brigitte Macron and French Education Minister Jean-Michel Blanquer pose for a photo after giving a dictation to school children in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

Brigitte Macron and French Education Minister Jean-Michel Blanquer pose for a photo after giving a dictation to school children in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

Brigitte Macron and French Education Minister Jean-Michel Blanquer pose for a photo after giving a dictation to school children in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

Brigitte Macron greets school children after giving a dictation in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

Brigitte Macron and French Education Minister Jean-Michel Blanquer greet school children after giving a dictation in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

Brigitte Macron greets school children after giving a dictation in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

Brigitte Macron gives a dictation to school children in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

Brigitte Macron gives a dictation to school children in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

Brigitte Macron gives a dictation to school children in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

Brigitte Macron gives a dictation to school children in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS

Brigitte Macron gives a dictation to school children in support for the European Leukodystrophy Association (ELA), at a school in Paris, France October 12, 2020. Thomas Coex/Pool via REUTERS