Participation in sport correlates with reduced suicidal ideation, reduced drug use, reduced risk for depression, and greater social supports. These benefits are seen in both male and female athletes, rich and poor, urban and rural, and all ethnic backgrounds. Furthermore the benefits are observed to be even greater in all areas mentioned above for high school aged athletes who participate in three sports during the year versus those who only participate in a single sport.
There is indeed the risk of injury, and in some sports such as football, I personally won’t allow my kid to participate in them and instead direct athletic efforts towards other sports, but I cannot say that even in those high risk sports the balance of harms isn’t in favor of letting kids play. If you want to show me that when viewed holistically that participation in soccer and high school football is worse than non-participation then I’m open to reading your argument.
If that is the measure of what should or should not be passed then no law would ever be passed because no single law can ever stop all bad things from happening to all people. This law protects some kids in some situations. Don't let perfect be the enemy of good.