Sure, no one ever accidentally left the shower curtain open a bit for a little peek a boo or it never fluttered open or the heat of the shower or you moving about caused it to open. The little freak needs to go back to its own XY locker room.
I was the first and only girl (yes, XX) in ag class so had to change in the storage room and they put a lock on it for me. The next year, they were building a new ag building so had to redraw the plans to accommodate girls. However, there was a boys' restroom and a girls' restroom and no one was confused as to their genders.
“Sure, no one ever accidentally left the shower curtain open a bit for a little peek a boo or it never fluttered open or the heat of the shower or you moving about caused it to open.”
Perhaps I wasn’t clear. It was all girls, no boys. The boys locker room was on the other side of the gym and just boys in there. I was never in there so I don’t know if they had curtains or not.