Earlier quoted context omitted.
I guess it depends on your philosophy of government and society. If you live in a social democracy with universal healthcare, drugs policy should probably be based around harm reduction. This is why helmets are required on bicycles (in some countries, for better or worse) and you need to wear a seatbelt in the car. It's your body, but the public has to pick up the tab when you break it. I don't think that you should…
I think this is a slippery slope. Drug legalization shouldn't be about reducing harm to optimize cost effective economics of keeping people alive. If that were true then you would have the power to outlaw anything that isn't healthy in the name of saving public tax dollars. Cigarettes. Soda. Deep fried foods. Watching too much TV. Sky diving. etc. Drug legalization is about using public funds on other issues besides…
Why do you need prisons when people will voluntarily imprison themselves?