My bottom line on this and other intoxicants, is get as high as you want, but don't expect me to pay for your treatment, broken car, rotted liver, etc. You want to drive or go to work that's fine too, but as soon as your impaired judgment hurts someone else, you get the book thrown at you, no questions asked.
I'll second all of these positions.
On a side note, why not have extra low cost Health Insurance policies for the responsible ONLY. Non-smokers, no recreational drugs or booze, monogamous, no hi-risk activities i.e. rock climbing, sky diving, auto racing. How would that sit with a Libertarian view?
It fits perfectly. Insurance companies should be able to tailer their policies to the markets they serve. You want to smoke, do drugs, engage in risky hobbies, etc. you pay a higher premium.
David Jahn