A boy shoots a World War II machine gun armed with blanks at an weapon exhibition during a military show near Kirovsk, about 30 kilometers (19 miles) east of St. Petersburg, Russia, Sunday, January 21, 2018. (Photo by Dmitri Lovetsky/AP Photo)

Female members of the Hammer tribe from the village of Turmi, situated in southern Ethiopia near the Kenyan border, dance as part of a ritual called the “bull jumping ceremony” that takes place during the passage of a young boy to adulthood, in Turmi, Ethiopia, 25 September 2019. (Photo by Stéphanie Lecocq/EPA/EFE)

Two boys look out from the Mangueira slum towards the Maracana Stadium that is hosting the Rio's 2016 Summer Olympics opening ceremonies, in Rio de Janeiro, Brazil, Friday, August 5, 2016. (Photo by Leo Correa/AP Photo)

A female is doused with wine as people take part in a wine battle, in the small village of Haro, northern Spain, Friday, June 29, 2018. La Batalla de Vino is held each June in the town of Haro on the feast of St Peter, an event organizers say draws thousands of people. On Friday, participants soaked each other with buckets and toy spray guns, turning their clothes a shade of purple. (Photo by Alvaro Barrientos/AP Photo)

Models Kendall Jenner and Joan Smalls are seen holding hands as they coordinated in pink while arriving with friends at LIV Miami during Art Basel on December 5, 2019. Luka Sabbat was also seen accompanying the women during their night out on the town. (Photo by Backgrid USA)

A young arab boy, armed with a rifle and a knife, in the Aden Protectorate near Yemen. (Photo by Richards/Fox Photos/Getty Images). February 1938

The Lady Boys of Bangkok have fun at the Meadows August 1, 2006 in Edinburgh, Scotland. (Photo by Jeff J Mitchell/Getty Images)

A British policewoman chasing after a group of naked street boys by the Serpentine in Hyde Park, London. (Photo by Reg Speller/Getty Images). 1926