Earlier quoted context omitted.
Won't reply to all the strawmen at the bottom of your post, but I and lots of people don't care what people HEAR while we're using the bathroom.... its a bathroom for god's sake! Everything happening in there is normal and I'm not sure why you are imagining yourself to be "vulnerable" inside a locked private room.
> I'm not sure why you are imagining yourself to be "vulnerable" inside a locked private room. The whole reason we all agree that having a locked room to do your business in is ideal is because it's such a vulnerable position to be in. We feel better about being in a locked room, but you can never get your basic instincts to not feel vulnerable when you're mid defecation/mid urination. It's animalistic and can never…
I think it's also highly dependent on your cultural background and upbringing.