Police officers and a doorman stand outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain March 5, 2021. REUTERS/John Sibley

A doorman and police officers are reflected in a window, outside King Edward VII's Hospital where Britain's Prince Philip was admitted in London, Britain, February 28, 2021. REUTERS/Peter Cziborra

A doorman stands outside King Edward VII's Hospital, where Britain's Prince Philip was admitted in London, Britain, February 28, 2021. REUTERS/Peter Cziborra

A doorman looks on as he stands outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain February 26, 2021. REUTERS/Paul Childs

A doorman checks senior residents' "Green Pass", a pass for those vaccinated against the coronavirus disease (COVID-19) or those with presumed immunity, before they enter a live performance by Israeli singer Nurit Galron, at Yarkon park, in Tel Aviv, Israel February 24, 2021. REUTERS/Amir Cohen

Police officers and a doorman talk as they stand outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 24, 2021. REUTERS/Paul Childs

Police officers and a doorman stand outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 24, 2021. REUTERS/Paul Childs

A dog walks in front of a police officer and a doorman outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 21, 2021. REUTERS/Toby Melville

Police officers and a doorman stand outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 21, 2021. REUTERS/Toby Melville

Well wisher, Twanna Helmy, 10, poses near police officers and a doorman as he delivers a hand-written card outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 20, 2021. REUTERS/Toby Melville

Well wisher, Twanna Helmy, 10, poses near a doorman as he delivers a hand-written card outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 20, 2021. REUTERS/Toby Melville

Police officers and a doorman stand outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 20, 2021. REUTERS/Toby Melville

Police officers and a doorman stand outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 20, 2021. REUTERS/Toby Melville

Police officers and a doorman stand outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 19, 2021. REUTERS/Matthew Childs

A doorman stands outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 19, 2021. REUTERS/Matthew Childs

Police officers and a doorman stand outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 19, 2021. REUTERS/Matthew Childs

Police officers and a doorman stand outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 19, 2021. REUTERS/Matthew Childs

Police officers and a doorman stand outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 19, 2021. REUTERS/Matthew Childs

A doorman stands outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 18, 2021. REUTERS/Hannah McKay

A doorman stands outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 18, 2021. REUTERS/Hannah McKay

A doorman stands at the entrance to King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 17, 2021. REUTERS/Hannah McKay

A doorman stands at the entrance to King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 17, 2021. REUTERS/Hannah McKay

A doorman gestures at the entrance to King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 17, 2021. REUTERS/Hannah McKay

A doorman stands outside King Edward VII's Hospital, where Britain's Prince Philip was admitted, in London, Britain, February 17, 2021. REUTERS/Hannah McKay

A doorman peers out of Trump Tower amid the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., January 12, 2021. REUTERS/Carlo Allegri

A doorman peers out of Trump Tower amid the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., January 12, 2021. REUTERS/Carlo Allegri

A doorman wearing a protective mask opens the door at the gold plated Dolce Hanoi Golden Lake luxury hotel in Hanoi, Vietnam November 19, 2020. REUTERS/Kham

A doorman wearing a protective face shield helps a woman pick her grocery items outside a store in a market, amidst the spread of the coronavirus disease (COVID-19) in Mumbai, India, July 31, 2020. REUTERS/Hemanshi Kamani

A doorman wearing a protective mask stands outside a Selfridges store at Oxford Street, amid the coronavirus disease (COVID-19) outbreak, in London, Britain July 28, 2020. REUTERS/Hannah McKay

A doorman of Trump Tower watches as people paint "Black Lives Matter" along 5th avenue in the Manhattan borough of New York City, New York, U.S., July 9, 2020. REUTERS/Shannon Stapleton

A doorman of Trump Tower watches as people paint "Black Lives Matter" along 5th avenue in the Manhattan borough of New York City, New York, U.S., July 9, 2020. REUTERS/Shannon Stapleton

A doorman in a floral-themed suit stands at the entrance to Annabel's club, after it reopened following the coronavirus disease (COVID-19) outbreak, in London, Britain, July 5, 2020. REUTERS/Peter Nicholls TPX IMAGES OF THE DAY

A doorman places a lit candle at the doorstep of 10 Downing Street, illuminated in blue to celebrate the 72nd anniversary of the NHS amid the coronavirus disease (COVID-19) outbreak, in London, Britain, July 4, 2020. REUTERS/Peter Nicholls

A doorman places a lit candle at the doorstep of 10 Downing Street, illuminated in blue to celebrate the 72nd anniversary of the NHS amid the coronavirus disease (COVID-19) outbreak, in London, Britain, July 4, 2020. REUTERS/Peter Nicholls

A doorman places a lit candle at the doorstep of 10 Downing Street, illuminated in blue to celebrate the 72nd anniversary of the NHS amid the coronavirus disease (COVID-19) outbreak, in London, Britain, July 4, 2020. REUTERS/Peter Nicholls

A doorman places a lit candle at the doorstep of 10 Downing Street, illuminated in blue to celebrate the 72nd anniversary of the NHS amid the coronavirus disease (COVID-19) outbreak, in London, Britain, July 4, 2020. REUTERS/Peter Nicholls

A doorman places a lit candle at the doorstep of 10 Downing Street, illuminated in blue to celebrate the 72nd anniversary of the NHS amid the coronavirus disease (COVID-19) outbreak, in London, Britain, July 4, 2020. REUTERS/Peter Nicholls

A doorman of the Sofitel Legend Metropole hotel, which was the venue of the February 2019 Trump-Kim summit, wears a protective mask as he stands by the door after the Government eased the nationwide lockdown following the coronavirus disease (COVID-19) outbreak, in Hanoi, Vietnam June 26, 2020. REUTERS/Kham

A doorman wheels personal belongings of Michael Cohen, the former personal lawyer for U.S. President Donald Trump on a luggage cart after Cohen arrived at his Manhattan apartment following his release from federal prison to serve the remainder of his sentence under home confinement in New York City, New York U.S., May 21, 2020. REUTERS/Mike Segar

A doorman wheels personal belongings of Michael Cohen, the former personal lawyer for U.S. President Donald Trump on a luggage cart after Cohen arrived at his Manhattan apartment following his release from federal prison to serve the remainder of his sentence under home confinement in New York City, New York U.S., May 21, 2020. REUTERS/Mike Segar

A doorman wheels personal belongings of Michael Cohen, the former personal lawyer for U.S. President Donald Trump on a luggage cart after Cohen arrived at his Manhattan apartment following his release from federal prison to serve the remainder his sentence under home confinement in New York City, New York U.S., May 21, 2020. REUTERS/Mike Segar

A doorman looks at his phone during the outbreak of Coronavirus disease (COVID-19), in the Manhattan borough of New York City, New York, U.S., April 1, 2020. REUTERS/Carlo Allegri

A doorman looks out from an empty hotel lobby in Herald Square in Manhattan during the coronavirus outbreak (COVID-19) in New York City, New York, U.S., March 18, 2020. REUTERS/Mike Segar

A doorman stands at an entrance to The Ritz London hotel in Piccadilly, London, Britain, October 10, 2019. REUTERS/Toby Melville

A doorman stands at an entrance to The Ritz London hotel in Piccadilly, London, Britain, October 10, 2019. REUTERS/Toby Melville

A doorman stands at an entrance to The Ritz London hotel in Piccadilly, London, Britain, October 10, 2019. REUTERS/Toby Melville

A doorman dressed in a floral patterned suit stands on duty outside of private club Annabel's with its front covered in flowers in Mayfair area of London, Britain, May 15, 2019. Picture taken May 15, 2019. REUTERS/Toby Melville

A doorman dressed in a floral patterned suit stands on duty outside of private club Annabel's with its front covered in flowers in the Mayfair area of London, Britain, May 15, 2019. Picture taken May 15, 2019. REUTERS/Toby Melville

A doorman dressed in a floral patterned suit stands on duty outside of a private club with it's front covered in flowers in London, Britain, May 15, 2019. REUTERS/Toby Melville

A doorman looks out to the street before Michael Cohen, the former lawyer for U.S. President Donald Trump leaves his apartment in Manhattan in New York City, New York, U.S., May 4, 2019. REUTERS/Yana Paskova

Jamal Sahlabji sits at the entrance of a private school where he works as a doorman in Gaziantep, Turkey, March 6, 2019. Picture taken March 6, 2019. REUTERS/Umit Bektas

A doorman waits to open the door at Diaoyutai State Guesthouse during the meeting of Malaysian Prime Minister Mahathir Mohamad and Chinese President Xi Jinping, in Beijing, China, 20 August 2018. Roman Pilipey/Pool via REUTERS

A doorman stands outside Lloyds of London's headquarters in the City of London, Britain, July 31, 2018. REUTERS/Simon Dawson

A doorman stands outside Lloyds of London's headquarters in the City of London, Britain, July 31, 2018. REUTERS/Simon Dawson

A doorman stands outside Lloyds of London's headquarters in the City of London, Britain, July 31, 2018. REUTERS/Simon Dawson

A doorman dressed in floral pattern suit speaks to armed police officers as he stands on duty outside of Annabel's private members club, adorned with thousands of flowers, timed to coincide with the RHS Chelsea Flower Show, in Mayfair in London, Britain, May 24, 2018. REUTERS/Toby Melville

A doorman dressed in floral pattern stands on duty outside of Annabel's private members club, adorned with thousands of flowers, timed to coincide with the RHS Chelsea Flower Show, in Mayfair in London, Britain, May 24, 2018. REUTERS/Toby Melville

A doorman dressed in floral pattern stands on duty outside of Annabel's private members club, adorned with thousands of flowers, timed to coincide with the RHS Chelsea Flower Show, in Mayfair in London, Britain, May 24, 2018. REUTERS/Toby Melville

A doorman dressed in floral pattern stands on duty outside of Annabel's private members club, adorned with thousands of flowers, timed to coincide with the RHS Chelsea Flower Show, in Mayfair in London, Britain, May 24, 2018. REUTERS/Toby Melville

A doorman, wearing Vietnamese traditional 'ao dai' dress, stands in front of Metropole Hotel in Hanoi, Vietnam April 10, 2018, REUTERS/Kham