@WhileMyGuitarGentlyWeeps Why are you so angry about people who make different choices to you. It's weirdly defensive, honestly.
My DH and I know the other is human, we live in a small flat, smells get around, farts slip out, stomach bugs happen, more than once I've unexpectedly come on mid-shag and covered him in blood.
We're grown ups who know and understand all of the above but we choose to be discreet where there's a choice. I know full well he shits but I don't want to see it happening. He knows I use tampons but I don't expect he wants to watch me change one.
We shag like rabbits by the way, lights on and no marigolds. I've never in my life been more comfortable with another human. I can tell him everything, I could show him anything, we would happily nurse each other through a bout of D&V, we'd just both rather that we never need to.
The bathroom door in the OP is no issue because we're comfortable enough to say 'I'm going to the toilet, might be a good time to go on the balcony' which is our code for 'it's not a wee, please give me some space for 5 minutes'.
I assume from your attitude that you don't even have bathroom doors at home then? Just wide open spaces for all-comers and any kind of privacy be damned?