Congratulations. You now have zero credibility with your son and you remain hopelessly naïve. If your son is in the gym for football and he is asking about steroids… do I even have to finish that sentence? I suppose this falls into the category of delusional parents… like the mom defending her son as a “a good boy” even though he just shot up the school and murdered dozens of innocents. 
listen, ive been around juicers and athletes for 2 decades and its not him... not only that, if given the choice to hunt, fish or lift, or play his fuckin video game lol, lifting would be last.. its got nothing to do with being naive, its called knowing your children... theres nothing wrong with asking questions.. does every question you ask, mean you are about to partake in whatever youre asking about?