Discrimination seem to become a bigger disadvantage than the health issues for people who smoke nowdays.
They don't really smell bad, it's just a cultural opinion. Horse crap won't stink if you work with horses, but Madam Goreché from Paris find it disgusting. Joe farmer on the other hand wouldn't even stand the polluted air the fancy lady is breathing daily.
You might find the aroma of a smoker disturbing since you are not used to it, but alienating the person for it will bring you to "the dark side".
For the OP:
It's your life, you are the only person in the world who would ever know how to live it to the best. Enjoy it whatever you do and don't.