Well it would be impossible for us men to otherwise see bras and pants. Other shops, magazines or the internet of course. It sounds outrageous that I would be forced to see them. God knows how I'd control myself.
You are welcome. It's all rather pathetic and schoolboyish.I'm surprised that more men haven't protested at the insulting and patronising characterisation of them as pervs.
Some people want to have a proper wash after a bike ride. Some ride harder than others. Some are sweatier then others. That is all irrespective of whether you are in shared changing rooms or single sex. If I didn't want people to see my leopard skin thong it wouldn't matter if it were other men or women. There are private cubicles if privacy is an issue. If not, getting changed or leaving up underwear in front of other people makes little difference which sex/gender they are.
It's like some people here have never been to a beach before.