they have to wear boaters at harrow
The best-known public example of Harrow tradition is probably the Harrow hat, which resembles a boater in materials and shape. This hat is worn to all lessons except in the late afternoon. Weekday dress consists of a white shirt, black tie, grey trousers, blue jumper and a bluer (see below). Sunday dress consists of a black evening tailcoat, pinstriped trousers, a black waistcoat, black tie and a white shirt. Variations include a grey waistcoat for those in the top sports teams, a hat with black speckles for boys in the top cricket team, and various society ties worn to meetings of the respective societies. en.wikipedia.org/wiki/Harrow_school#Uniform
strikes me the boater carries its own cultural connotations