High School steroid testing

I do not believe that their should be testing in high school for steroids for a number of reasons. First off, it is an expensive waste because the amount of people you are actually going to catch doing a "random" drug test is slim and not worth all the trouble. Also, I do not believe that steroids, when managed, are bad for you. There are so many people who have taken steroids and their health has not been effected by it. If you take steroids for one cycle like what Alex Rodriguez did in high school then there really is no harm, it becomes harmful when you start abusing them. If athletic coaches and trainers are trained on how to use steroids properly, I see no reason why they can't be legal.