French high school students block the access to the Lycee Turgot in Paris during a nationwide day of strike and protests against French government's pension reform plan in France, January 19, 2023. The placards read "No planet, no pension" and "Police everywhere, pension nowhere". REUTERS/Benoit Tessier 

French high school students block the access to the Lycee Turgot in Paris during a nationwide day of strike and protests against French government's pension reform plan in France, January 19, 2023. The placards read "No planet, no pension", "angry high school students", "retirement before arthritis" and "Police everywhere, pension nowhere". REUTERS/Benoit Tessier 

French high school students block the access to the Lycee Turgot in Paris during a nationwide day of strike and protests against French government's pension reform plan in France, January 19, 2023. The placard reads "Retirement before arthritis". REUTERS/Benoit Tessier 

French high school students block the access to the Lycee Turgot in Paris during a nationwide day of strike and protests against French government's pension reform plan in France, January 19, 2023. The placard reads "Angry high school students". REUTERS/Benoit Tessier 

French high school students block the access to the Lycee Turgot in Paris during a nationwide day of strike and protests against French government's pension reform plan in France, January 19, 2023. The placard reads "On strike until retirement". REUTERS/Benoit Tessier 

French high school students block the access to the Lycee Turgot in Paris during a nationwide day of strike and protests against French government's pension reform plan in France, January 19, 2023. The placards read "No planet, no pension", "angry high school students" and "Police everywhere, pension nowhere". REUTERS/Benoit Tessier 

French high school students block the access to the Lycee Turgot in Paris during a nationwide day of strike and protests against French government's pension reform plan in France, January 19, 2023. The placards read "No planet, no pension" and "Police everywhere, pension nowhere". REUTERS/Lucien Libert 

French high school students block the entrance of the Lycee Helene Boucher in Paris during a nationwide day of strike and protests against French government's pension reform plan in France, January 19, 2023. REUTERS/Lucien Libert 

Demonstrators and students hold banners at Centro Medico subway station during a protest against the deployment of the National Guard in stations and other facilities of the Metro system after a series of incidents in Mexico City, Mexico January 18, 2023. REUTERS/Henry Romero 

Demonstrators and students hold banners at Centro Medico subway station during a protest against the deployment of the National Guard in stations and other facilities of the Metro system after a series of incidents in Mexico City, Mexico January 18, 2023. On the chest of a protester reads: "No + military in the Metro". REUTERS/Henry Romero 

Demonstrators and students hold banners at Centro Medico subway station during a protest against the deployment of the National Guard in stations and other facilities of the Metro system after a series of incidents in Mexico City, Mexico January 18, 2023. REUTERS/Henry Romero 

Demonstrators and students hold banners at Centro Medico subway station during a protest against the deployment of the National Guard in stations and other facilities of the Metro system after a series of incidents in Mexico City, Mexico January 18, 2023. REUTERS/Henry Romero 

Demonstrators and students hold banners as they enter Centro Medico subway station during a protest against the deployment of the National Guard in stations and other facilities of the Metro system after a series of incidents in Mexico City, Mexico January 18, 2023. REUTERS/Henry Romero 

Demonstrators and students hold banners as they give a speech to the media at Centro Medico subway station during a protest against the deployment of the National Guard in stations and other facilities of the Metro system after a series of incidents in Mexico City, Mexico January 18, 2023. On the chest of a protester reads: "No + military in the Metro". REUTERS/Henry Romero 

University students protest after Indonesia passed a new criminal code that will ban sex outside marriage and cohabitation between unmarried couples, and insulting the president by expressing views counter to the national ideology, outside the Indonesian Parliament building in Jakarta, Indonesia December 15, 2022. REUTERS/Ajeng Dinar Ulfiana 

University students raise white sheets of paper during a protest after Indonesia passed a new criminal code that will ban sex outside marriage and cohabitation between unmarried couples, and insulting the president by expressing views counter to the national ideology, outside the Indonesian Parliament building in Jakarta, Indonesia, December 15, 2022. REUTERS/Ajeng Dinar Ulfiana 

Hooded protesters clash with riot police, following an anniversary rally marking the 2008 police shooting of 15-year-old student Alexandros Grigoropoulos, in Thessaloniki, Greece, December 6, 2022. REUTERS/Alexandros Avramidis 

Hooded protesters clash with riot police, following an anniversary rally marking the 2008 police shooting of 15-year-old student Alexandros Grigoropoulos, in Thessaloniki, Greece, December 6, 2022. REUTERS/Alexandros Avramidis 

Hooded protesters clash with riot police, following an anniversary rally marking the 2008 police shooting of 15-year-old student Alexandros Grigoropoulos, in Thessaloniki, Greece, December 6, 2022. REUTERS/Alexandros Avramidis 

Riot police officers detain protesters during brief clashes following an anniversary rally marking the 2008 police shooting of 15-year-old student Alexandros Grigoropoulos, in Athens, Greece, December 6, 2022. REUTERS/Alkis Konstantinidis 

Protesters shout attend an anniversary rally marking the 2008 police shooting of 15-year-old student Alexandros Grigoropoulos, in Athens, Greece, December 6, 2022. REUTERS/Alkis Konstantinidis 

Protesters, some wearing gas masks, take part in an anniversary rally marking the 2008 police shooting of 15-year-old student Alexandros Grigoropoulos, in Athens, Greece, December 6, 2022. REUTERS/Alkis Konstantinidis 

People play cards on the street as teachers and students hold a vigil in support of teachers fighting for higher wages in Budapest, Hungary, December 3, 2022. REUTERS/Marton Monus 

A person looks on as teachers and students hold a vigil in support of teachers fighting for higher wages in Budapest, Hungary, December 3, 2022. REUTERS/Marton Monus 

A person reacts as teachers and students hold a vigil in support of teachers fighting for higher wages in Budapest, Hungary, December 3, 2022. REUTERS/Marton Monus 

People roast marshmallows as teachers and students hold a vigil in support of teachers fighting for higher wages in Budapest, Hungary, December 3, 2022. REUTERS/Marton Monus 

People hang flags and banners as teachers and students hold a vigil in support of teachers fighting for higher wages in Budapest, Hungary, December 3, 2022. The banner reads: "Free country, free education" REUTERS/Marton Monus 

A person with an exclamation mark on his face looks on as teachers and students hold a vigil in support of teachers fighting for higher wages in Budapest, Hungary, December 3, 2022. REUTERS/Marton Monus 

A person holds a hot drink as teachers and students hold a vigil in support of teachers fighting for higher wages in Budapest, Hungary, December 3, 2022. REUTERS/Marton Monus TPX IMAGES OF THE DAY 

A person stands near a fire as teachers and students hold a vigil in support of teachers fighting for higher wages in Budapest, Hungary, December 3, 2022. REUTERS/Marton Monus 

People talk to students who are under lockdown in Tsinghua University in Beijing, China, November 27, 2022. REUTERS/Thomas Peter 

Janos Dzsida, 43, History teacher takes part in a live-chain protest in support of teachers fighting for higher wages in Budapest, Hungary, November 18, 2022. REUTERS/Marton Monus 

Janos Dzsida, 43, History teacher is seen at his home with his son Levente after taking part in a live-chain protest in support of teachers fighting for higher wages in Budapest, Hungary, November 18, 2022. REUTERS/Marton Monus 

Students take part in a live-chain protest in support of teachers fighting for higher wages in Budapest, Hungary, November 18, 2022. REUTERS/Marton Monus 

Janos Dzsida, 43, History teacher takes part in a live-chain protest in support of teachers fighting for higher wages in Budapest, Hungary, November 18, 2022. REUTERS/Marton Monus 

Students take part in a live-chain protest in support of teachers fighting for higher wages in Budapest, Hungary, November 18, 2022. REUTERS/Marton Monus 

Students take part in a live-chain protest in support of teachers fighting for higher wages in Budapest, Hungary, November 18, 2022. REUTERS/Marton Monus 

Janos Dzsida, 43, History teacher takes part in a live-chain protest in support of teachers fighting for higher wages in Budapest, Hungary, November 18, 2022. REUTERS/Marton Monus 

Students takes part in a live-chain protest in support of teachers fighting for higher wages in Budapest, Hungary, November 18, 2022. REUTERS/Marton Monus 

Janos Dzsida, 43, History teacher travels home after a live-chain protest in support of teachers fighting for higher wages in Budapest, Hungary, November 18, 2022. REUTERS/Marton Monus 

Janos Dzsida, 43, History teacher teaches online from his home after taking part in a live-chain protest in support of teachers fighting for higher wages in Budapest, Hungary, November 18, 2022. REUTERS/Marton Monus 

Janos Dzsida, 43, History teacher teaches online from his home after taking part in a live-chain protest in support of teachers fighting for higher wages in Budapest, Hungary, November 18, 2022. REUTERS/Marton Monus 

Janos Dzsida, 43, History teacher is seen at his home with his daughter Dorina after taking part in a live-chain protest in support of teachers fighting for higher wages in Budapest, Hungary, November 18, 2022. REUTERS/Marton Monus 

Janos Dzsida, 43, History teacher teaches online from his home after taking part in a live-chain protest in support of teachers fighting for higher wages in Budapest, Hungary, November 18, 2022. REUTERS/Marton Monus 

Students hold a banner as workers protest against the risk of closure of the Lukoil plant in Sicily, caused by the embargo on Russian seaborne oil, in Syracuse, Italy, November 18, 2022. The banner reads: "Our lives are worth more than their profits". REUTERS/Antonio Parrinello 

Students hold banners as workers protest against the risk of closure of the Lukoil plant in Sicily caused by the embargo on Russian seaborne oil, in Syracuse, Italy, November 18, 2022. The banners read:"Not only employees but also families", "Quintilian aware" and "Future workers say no". REUTERS/Antonio Parrinello 

A hooded protester holds a marble during clashes with riot police, following a rally marking the 49th anniversary of the 1973 Athens Polytechnic student uprising, in Thessaloniki, Greece, November 17, 2022. REUTERS/Alexandros Avramidis 

Fireworks explode in front of riot police as they clash with protesters, following a rally marking the 49th anniversary of the 1973 Athens Polytechnic student uprising, in Thessaloniki, Greece, November 17, 2022. REUTERS/Alexandros Avramidis 

Riot police advance as they clash with protesters, following a rally marking the 49th anniversary of the 1973 Athens Polytechnic student uprising, in Thessaloniki, Greece, November 17, 2022. REUTERS/Alexandros Avramidis 

A police water cannon throws water at protesters, following a rally marking the 49th anniversary of the 1973 Athens Polytechnic student uprising, in Thessaloniki, Greece, November 17, 2022. REUTERS/Alexandros Avramidis 

Petrol bombs are thrown to riot police by protesters as they clash, following a rally marking the 49th anniversary of the 1973 Athens Polytechnic student uprising, in Thessaloniki, Greece, November 17, 2022. REUTERS/Alexandros Avramidis 

Pacfiic Island law students demonstrate for climate justice at COP27 climate summit in Red Sea resort at Sharm el-Sheikh, Egypt, November 16, 2022. REUTERS/Emilie Madi 

Pacfiic Island law students demonstrate for climate justice at COP27 climate summit in Red Sea resort at Sharm el-Sheikh, Egypt, November 16, 2022. REUTERS/Emilie Madi 

Pacfiic Island law students demonstrate for climate justice at COP27 climate summit in Red Sea resort at Sharm el-Sheikh, Egypt, November 16, 2022. REUTERS/Emilie Madi 

Pacfiic Island law students demonstrate for climate justice at COP27 climate summit in Red Sea resort at Sharm el-Sheikh, Egypt, November 16, 2022. REUTERS/Emilie Madi 

Pacfiic Island law students demonstrate for climate justice at COP27 climate summit in Red Sea resort at Sharm el-Sheikh, Egypt, November 16, 2022. REUTERS/Emilie Madi 

Pacfiic Island law students prepare to demonstrate for climate justice at COP27 climate summit in Red Sea resort at Sharm el-Sheikh, Egypt, November 16, 2022. REUTERS/Emilie Madi 

Pacfiic Island law students demonstrate for climate justice at COP27 climate summit in Red Sea resort at Sharm el-Sheikh, Egypt, November 16, 2022. REUTERS/Emilie Madi 

Pacfiic Island law students demonstrate for climate justice at COP27 climate summit in Red Sea resort at Sharm el-Sheikh, Egypt, November 16, 2022. REUTERS/Emilie Madi 

Pacfiic Island law students prepare to demonstrate for climate justice at COP27 climate summit in Red Sea resort at Sharm el-Sheikh, Egypt, November 16, 2022. REUTERS/Emilie Madi