To start off, I feel as though many parents don't even care or pay attention to what their kids/teens do. Aside from that, teens should have to require permission to play sports. I get the fact that it could be dangerous but, many kids just want to go out and have fun. So, let them.They may learn a lesson from doing so, and it can be don't play dangerous sports when they get hurt (assuming that they will at some point). These are just my thoughts.