Terry I'm not sure.
Stats are v dodgy on sex offences. Yes different countries definitely have different levels. I'm not sure that it's at all rosy in some though. And if so I doubt mixed sex naked is a reason for less assaults, but a consequence iyswim.
Also and no I don't know everything so interested to hear any other countries! Love getting new info!
The ones I know-
Austria. In general social standards are vocally policed by the general population.
Eg
In a restaurant a woman in a couple got drunk. Quietly at table. When stood up she could barely stand) walk.
Atmosphere went v cold. Everyone watching disapprovingly. As her OH helped her out, woman stood up and did loud denunciation of her behaviour as she went past. No one batted an eyelid.
Just an example.
Yes mixed sauna. However. I have no doubt that toe out of line would be immediately reacted to by all in vicinity.
Finland. Sauna huge cultural big deal. I know many have at home. And mixed sex = mum dad kids granny uncle etc. I know as my friend was girlfriend (now married) to a Finn. And the first bunch of times visiting. involved sharing family norms. Including naked sauna with boyfriend, his sister and brother, parents, an aunt and granny.
I think I looked at public sauna and there are norms etc... To do anything outside norm would be same sort of thing as going to church, mooning the congregation and throwing paint over the vicar. Iyswim. Just. Unimaginable.