Look, the basic issue is that there are often kids around in the locker rooms, even in the "adult" rooms, where they are sometimes taken by their dads.
It's the adult responsibility to set a good example for the kids. You don't see a kid's dad acting like that in the locker room in front of a kid.
Do you ever wonder WHY they even have separate "boys" and "mens" locker rooms?
Why bother? Is it because there are some guys who just can't govern themselves accordingly in front of kids? i.e. who have no self-control or respect for others around them?
Yes, it is--and those guys are known colloquially as jerks.
So for me there are basically 2 locker rooms--"boys", and "jerks".
One where you have license to be a jerk, and one where you don't.
Given the option, I will take the latter every time.