is bathroom violence higher than normal violence because we're not allowed to put cameras in there?

you see it on movies and shows all of the time and it's happened in my gym a few times also where people wait and then corner someone in the bathroom and beat them up there because they know there's no escape and the facility isn't allowed to put cameras around taht room so unless there's a witness they'll get away with it esepcially in movies since one guy at my gym actually ended up admitting to it becuase he got a few injuries during the fight that were obvious. since i use the bathroom out in public a few times each day i'm worried about what type of message the younger kids are getting from this and everyttime one comes in wearing those hooded sweatshirts and rapping i honestly get worried now which didn't happen before when the bathroom's were just as protected as anyywhere else, is this a trend now or do mostt people think it's okay for isssues to be settled behind the scenes like that? also what can be done to add less invasive security inside of bathrooms themselves so a security guard can tell what's happeneing in there and if someone needs help.