NONE.
All sports federations leagues etc have rules against performance enhancing drugs because it can provide an unfair advantage to a person or team. The same should apply to male student being on female teams and female student being on male teams.
You are going to find more males in high school over 6 feet then females. So would not 2-3 of them being on the female volleyball team be an advantage? The reason this is wrong and a terrible idea are legion!
Well, it’s already happening in some sports. Fencing has had a controversy going on for years because the International Olympic Committee has decreed that “transgenders” are allowed to compete as their “new” gender.
So yes, that means that there are FAKE women competing
against REAL women. And the real women don’t like it at all. Unfortunately for the real women, they’ve tied themselves up in such politically correct knots that they can’t effectively protest against this practice. They are afraid to say the truth, which may “offend” the (mentally unstable) “transgender”.
BTW, I’ve never heard of a fake man trying to compete against real men. That doesn’t mean it doesn’t happen, but I’ve never heard of it at the elite levels. (The fake man wouldn’t stand a chance against real men at that level.)
I imagine you could apply this to any number of sports; I just happen to know that this IS an issue in fencing.
Regards,