ya, there are many who dont listen, but it is really up to them.. I started young and have no regrets, I just remember being scared because my football coach talked to the whole football teams parents and I remember coming home and seeing his truck in my driveway, he said he suspected me of them and was going to try and test me, but that never happend, lol.. So young ones if you do juice, make sure you keep it to yourself because the coachs will find out...