When I was in middle school/high school, most of these academies/camps that were going on for various sports were mainly held during summer months outside of the school year and separated from various fall/winter/spring sports seasons. That enabled kids who were multisport athletes or interested in trying a bunch of different sports out to be able to develop and compete in multiple sports, plus get additional training/development during the summer in a sport (or sports) they wanted to pursue further. Nowadays, there are often travel leagues/camps going on year round, and they constantly infringe on the traditional sports seasons - sometimes even the same league season their own sport is playing out at the high school level. I've got friends whose girls barely know which uniform they have to yank out of the dryer on their way out the door to either a high school volleyball match, select team basketball camp, or softball practice. I know for certain that if I were a teenager right now, there's no way I would have been running cross country in the fall, and I probably would have been hardpressed to play basketball long enough to finally develop once I got into highschool to play it at the varsity level at an all-conference level for a couple years. I was young for my age and was always lagging in physical development through middle school, riding the pine in some travel basketball leagues but still able to practice and play enough to get better. Baseball was always my #1 sport and it did take precedent in summers when deciding which other camps I would partake in, but it would have stunk to essentially need to give up on playing competitive basketball because I "wasn't good enough" in 7th grade. I will say to me the biggest issue with this is in the team sports, not so much individual sports where the individual kids and parents have alot more control about practice/development/camps - the peer pressure and time/financial commitment aspects these team sport academies push onto families is out of hand, particularly at the middle school level, IMO.