allstar athletes train year round, have a leveling system to help make sure athletes are performing skills at there level, and as well gyms that train with full time coaches who it is their career and job to make sure the athletes are safe and excelling. if the kids are getting hurt at a gym that gym loses money and cannot stay open. it is someones livelihood to make sure they are doing it right.
high school practices for 3 or 4 months a year. all cheerleading skills are extremely perishable. the facilities in which they teach are not as well equipped as a cheerleading gym. also, a teachers job does NOT rely on the success of her cheerleading team. If they fail and get last or repeatedly have injuries unless they are in a highly competitive area usually the cheer coach will just stay as is.
so, in essence what you are saying is those two situations should be allowed to take the same amount of risk?