There is a demand for drugs.

let ICI make the drugs.
Boots the Chemist sell them.
If it is your chosen path in life, do a vocational course at the local college - Being a junkie101 - they can teach you about clean needles and stuff like that.

Then your houses wouldn't be burgled by junkies. the gangsters would be out of the frame. the prisons would be emptier.

Then songwriters and film makers would see what a dull as fuck subject this is - no more waiting on the man, cocaine blues, trainspotting, etc, diving down toilets.....
there must be a catch, otherwise they would have done it years ago, but I can't see what it could be.