My daughter Birdie's JW boyfriend is an extremely gifted athlete, and has been allowed to play on school sports teams. I know he juggles the nights he goes to service, so that he can make his games. He has never in the past been allowed to play on teams outside of school. He told me how badly he had wanted to play on a "real" hockey team instead of "brothers' hockey" and I could hear the intense longing in his voice. His other passion, other than my daughter (lol), is volleyball, and is now being allowed to try out for elite club teams. I suspect his parents think he is better off spending many hours exhausting himself playing volleyball, than having romantic thoughts about my daugher and hanging near the computer so they can talk. Anyway, from what he told me, he is unusual in the amount of sports he is allowed to be involved in, and most of the JW kids he knows can only ski,snowboard, play hockey and everything else with other JW kids. We know one JW girl who has only recently been allowed to spend a lot of time at the ballet school in dance classes, and again, from what I heard, her parents felt that the exercise helped keep her away from a guy she had been involved with.
In fairness to the JW parents involved, allowing the kids to be involved in something that they really love, even if it is to distract them from the opposite sex, seems to be a humaine way of handling it.