Except that second hand smoke isn't really that bad.
http://www.forbes.com/sites/danielfisher/2013/12/12/study-fi...
>Most of the research has come from studies of nonsmokers who are married to a smoker. Those conclusions are also backed up by further studies of workplace exposure to smoke
I suggest you don't marry a smoker, or work in a bar where they allow smoking. Otherwise, you'll be fine. You'll probably be fine either way. The increased risk is minimal (1-4%?) and requires years and years of constant exposure.
At this point some smokers like to bring up "b-b-but what if someone wears a ton of perfume??" but in practice basically nobody regularly takes a break to shoot perfume several times in a row into the air around them.
That also applies to different cultures' bathing and perfume practises, but I think we all recognise that banning those practises would be unjust.
> At this point some smokers like to bring up "b-b-but what if someone wears a ton of perfume??" but in practice basically nobody regularly takes a break to shoot perfume several times in a row into the air around them.
You've clearly never shared an enclosed space with someone whose bathing practises — while unobjectionable from a health & sanitation viewpoint — are different from your own.
It's quite rare that I come across anyone who's even close to as stinky as a smoker who's currently smoking. Besides, as a practical matter, restricting bad body odor is not nearly as problematic as restricting smoking.