>>937236192I am European too. If you shower nude in a very visible area in a place that's not designated for nudity, you'd certainly get looks, or police called upon you. Tits of any gender are fine tho.
It's not just beaches and so on. Larger city parks around here often have areas designated for nudity too.
Larger water parks kinda things often have nudity days.
If something designated for nudity, you are required to be nude.
Most swimming areas (pools, lakes and such) have either cabin showers or gendered group showers. Music festivals usually gendered group shower tents.
If you were to shower with trunks on in a group shower setting, you'd get nasty looks.
At a public pool, they usually have rules saying you're only allowed to enter the pool after properly showering first, and "properly" means nude. They do not have people watching you shower to make sure you do it right, but you can be sure that some old guy or gal will rat you out to staff if you don't do it properly.
Saunas/Spas around here are usually nudity required. Most are co-ed, some or women-only. Men-only isn't a thing.
Stupid tourists often go to the hot saunas in their trunks and literally burn themselves slightly when their trunks get sizzling lmao