I think it's interesting seeing people in the restroom. Like if it's just some number 1, conversation time. But if it's number 2, no eye contact, no words to be had. Like you're ashamed of your own poo baby. Be proud of that loaf bro... You made that with your own body.
Some people are fine with it. If I see a coworker go into the restroom right before me, I'll intentionally wait so I don't run the risk of having to chat with them while standing at the urinals.
That position in nature is a vulnerable one. Think of how many animals including people popped a squat only to shortly thereafter find themselves being eaten alive.
To make matters worse some animals even start from there when chowing down.