I learned something today: There's no more showering together after gym class. Back when I was in high school, it was the normal thing, and now it's no longer deemed appropriate for young people to see each other naked. Even in the strait-laced first half of the 20th century that was okay, but it seems young people can't handle it anymore.
Learning that made me think of this thread. Is it because young people automatically think of sex when they see another person naked, and that skeeves people out when those other people share a gender? Is it body image mania or millennial narcissism? Did Porky's spoil it for everyone?