Those who know lovely trans friends and think it’s overreach to claim this is pervy behaviour, your lovely friends aren't pervs etc….
No one thinks their own behaviour is pervy. Everyone thinks they mean no harm. Everyone seems nice to their friends. We all think our interests and interactions are innocent.
The boys at school just want a peek, they aren’t pervy, just curious. It’s all totally innocent, they are just wondering, just wanting to be helpful, just offering a tampon out of sheer generosity and philanthropy.
No. When your innocent desire to help/peek/join in is more important than the other person’s preference for you to mind your own business, it’s creepy and pervy. Doing something someone else doesn’t want you to do because you mean no harm is creepy.
So if your nice trans friends don’t mean any harm when they use women’s spaces, are just offering to help the girls in the clothing section etc well they are creepy.