I wonder if smoking, at least in the USA, is going the way of drinking. Used to be (my grandparents generation, at least) that drinking was accepted just about anywhere. No real DUI laws, it was acceptable to keep a bottle of scotch in your office at work and have a snort at meetings.
These days, the world no longer accepts the drunk driver; the cops just don't let you sleep it off with no repercussions. It's understood that drinking excessively is a problem and society just doesn't allow the behavior.
In Colorado at least, you can't smoke inside anywhere. Some companies disallow smoking on campus. Some companies go so far as to test for nicotine and will fire those that do continue to smoke. At all. At the least, many corporations will offer health insurance premium differentials based on tobacco use.
IF it gets to the point that society simply doesn't allow cigarettes/cigars/pipes/whatever, we'll likely see it treated more as a disorder or disease and less like "your smelly friend" or whatever.
I don't know how the rest of the world looks at it outside of the US and UK. Slip: I understood you live in Asia somewhere (Hong Kong maybe?). My recollection of China was that EVERYONE smokes. All day, like a freight train. Is China taking the same tack? Is it just Hong Kong? Am I way off track here?
My preference would be that, for something like smoking, it would seem like a perfect thing to ban. At the very least, with US drinking laws setting the age to purchase to 21, why is alcohol illegal when cigarettes are not?
I'm a former smoker. I still want one. Ugh.