I've peed in virtually every pool I've ever swam in. Maybe only a handful of times I didn't pee in the pool, like I think when going to a pool party in high school or college where I was super worried about appearances. But otherwise, it's a communal toilet toilet to me, and we're all pee brothers & sisters when we enter. If I had my way, I'd wear shoes into the pool/toilet, then wear them inside, then eat a pizza with pineapple on it, and tip 20%, all in one day.
I have a friend who has to take his dick out of his trunks to pee in the ocean. It's amazing, as when he has to go he goes to some semi-remote area in the water and stands there with his arms in the water looking out into the vast blue yonder. We know what he's doing.
The mindset is probably similar to why people pee in the ocean. "I don't want to get out and be cold and wet just to go pee, it's not like anyone will notice"
Unless it's a pool with one of those chemicals that colors when you pee.
You're seriously swimming in boat exhaust in the ocean, as well as being surrounded by millions of dead/decaying/dying sea creatures, and (literally) millions of tons of biological waste. In addition to this, ocean water is actually toxic for you to drink. Human urine in the ocean probably makes it
more sanitary.
PLUS, when my sister was a little kid, back in like 1985, she
pooped in the ocean in New Hampshire. So, yes, you're even swimming in my sister's 30-year-old poop.