They don't even have to look for a loophole. The ones who really want to do it are just moving and avoiding the year off anyways, or going to private schools where they don't have to sit. Had a neighbors nephew from FL move in with them for 2 years to play football at the local HS football factory. Current rules aren't stopping any of the people chasing the prestige programs, especially in a sport that leans to the wealthy like soccer. The kids displaced on the "home" teams? Tough luck. Meanwhile, some nearby schools in some sports can't even get enough interest to field JV teams.