I'd do it if I didn't risk getting caught.

The biggest problem with drugs is that they are illegal, and the "war on drugs" creates more victims than the drugs themselves. Not to mention the social stigma, which prevents them from doing work they would have been perfectly capable of doing even if they smoked a joint in the weekends, shot heroin on friday afternoons, snorted cocain in a strip club on a saturday night.

The illegality keeps the drugs more impure than they have to be, because the production needs to go through more stages to avoid showing up in red flashing letters on the watch lists for purchase of various chemicals. The more stages, the more dirty the drugs get. I would love it if Novartis made my MDMA in their million dollar super high tech labs (if I had used illegal drugs anyway). It also makes dealers sometimes mix other chemicals into whatever they're selling to make bigger profits. Normal amphetamines being mixed with methamphetamine, for example.

Legal drugs that were traceable back to the manufacturer would ensure that you always got the right mix of substances, and the amonts of it you wanted. I firmly believe this would lead to fewer overdoses and fewer health risks. Most of the long term damage dealt to heroin users isn't from the heroin itself, but the health risks associated with needle sharing, impurity, lack of a real place to live, etc.