Why in some countries?

Why is it in some countries, like Mexico, You can buy just about whatever it is You want. Steroids, pain killers, etc., without a prescription. What is it like over in Europe ? Is it the same way ? Why do certain countries allow citizens to purchase drugs without a prescription ? It can't be all about the money can it ? Why does the federal government or even doctors think that they need to regulate what someone wants to do to their own body ? If it was all about the money, wouldn't one think that the U.S. would change their own laws and allow it, just think of what they could charge for it. Just a curious question, that I and maybe others think about, or not.

So your asking us why we have drug laws? and why do the goverment care?? your asking a question that cant be answered i think... politics... money... who knows!