My freshman year roommate took all her clothes off to poop. She had no idea this wasn't normal. I think about this a lot.
One day she mentioned something like "yeah so I was taking my shirt off in the bathroom" or something, and I was like "wait, what?"
She was genuinely thought everyone did this. She was disgusted that I would leave my shirt on while pooping.
I guess like, we go through life not knowing what other people are up to while they're pooping. So you have no idea what's actually normal.
This is some pretty deep stuff, when you think about it.