My freshman year (over 50 years ago) we swam naked in swim class.
My brother, a sophomore, told me a story about a day that was deemed co-ed swimming day. Of course, everyone wore swimming trunks, except for one boy, who didn’t get the memo. He left the locker room and walked into the pool area naked as the day he was born. To make matters worse, he was blind as a bat without his glasses. It took a few long seconds of “THERE ARE GIRLS IN THE POOL” from the boys before he ran for cover.
He is a professor at Yale.
yeah, same here, in 8th grade. It was a big shock (and source of much joking) among the 12 year-old boys, to separate the errr, ummm "men," from those who were still boys...