Maybe alcohol and cigarettes will be treated differently. Although there are alcoholics, which have big social costs, alcoholics are vastly outnumbered by casual drinkers who show no ill effects from drinking (and I think I've even read one drink a day is correlated with longer life).
Whereas I would guess most cigarette smokers are addicted at some level. And long term smoking, even at low levels, is probably correlated with more medical expense (and often borne by the public).



).
We were allowed to smoke in hospital wards, and lecture halls on campus!





