So here's an interesting observation...
I'm a Canadian living in the US. I am a member of our Masters Swim team and I go to the pool at times outside of masters as well.
I would say on the whole, Canadians are a bit more European in their attitudes about nudity but not much. You'll still see lots of Canadians going through the towel change dance in the locker room.
At our pool here in the US, we have an open group showering area and 3 stalls with curtains in the same area. When we come out of masters, there is always a rush for the stalls, because they have the best nozzles, not because of privacy. In fact, no one closes the curtains so we can all make eye contact while we chat and get caught up on our lives outside of the pool. We walk around naked with towels on our heads, do hair and make-up in our underwear.
When I go to the pool at public swim times the vibe is totally different. People use private changing rooms and I almost never see anyone showering naked with the curtains open on the stalls. And I often get a bit of stink eye when I walk naked through the locker room from the shower to the dressing area, like I'm doing something wrong.
So I'd say that a there is a ton of variablility from place to place and even in one place depending on the time of day!
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