Jeff Bezos recently appeared in the kind of leather jacket associated with men in middle-aged crisis mode - Robino Salvatore/GC Images

A couple of weeks ago, on a rainy afternoon in Milan, the young British actor Harris Dickinson – who stars opposite Nicole Kidman in the hit film Babygirl – arrived at Prada’s autumn/winter menswear show – staged across three storeys on an enormous custom-built scaffold – wearing a sleek, Seventies-style, cracked black leather jacket over a simple tonal sweater.