It's acceptable now, depending on the social set. I was shocked at how casual marijuana use had become on a recent trip to Alabama (the last state progress visits). Among my milieu of mid-thirties white, well-educated attorneys, doctors, lawyers, teachers and managers there was very little stigma associated with pot. Over and over I was surprised to find casual pot use: a couple of housewives giggling over a joint in the afternoon, ubiquitous use at every cocktail party I went to, clusters of men in jackets and ties and women holding wine glasses congregating on the back porch for a smoke. I don't think there's necessarily any stigma attached to pot use because it is now used by a wide variety of people. Once confined to hippies, musicians, gangsters and dropouts, pot is now used by all sorts of people. I think pot will be increasingly viewed as socially acceptable in almost all groups, though the law will take some years to catch up.

(There is zero stigma with pot use here in Durango, but the culture is not representative. It's certainly as accepted as alcohol.)