Trying to stop people from using drugs is like trying to stop a river from flowing - almost impossible

Much easier and more feasible to guide and direct the flow.

People will want to do drugs and will have access to them. By creating legal channels and not making drugs taboo you encourage communication between consumers, business, healthcare and government so people can make informed choices and you improve accessiblity to quality drugs as opposed to these third rate drugs you get form dealers who yoi have no way of quality control testing.