I'd not come across the term 'comparative advantage' before. Not thought of it from that angle. You want the freedom to turn pot into a commodity?

Growing the plant, a weed is pretty trivial. Anyone could do it. Which means those barriers are not in place. However, I appreciate some people might not have the time and energy - how about additionally making it okay to give to your friends?

The recreational drug I do frequently is alcohol just because it's legally and sociably acceptable - given a free choice it certainly wouldn't be my first.