apushutayid:
Oh, I see now. You don’t want to support their vice. I earlier thought you wouldn’t give to anyone who was smoking even if they were collecting for an institution, which is why I compared it to bad personal hygiene.
Well, I guess the answer to your question is you need to know if the began smoking as a kid or as an adult.
The gemara says that we support people ?? ??????, what they lack.
The gemara has a story where a poor person came and the amora asked him what he eats, he said fat geese and old wine, so he gave it to him.
Then another person came who said the same thing and he gave him barley.
He explained that the first one was raised in a wealthy house, so he grew up accustomed to it, while the second became wealthy himself and is at fault for adopting expensive habits.
So if he started smoking at 15, you can hardly say it is his fault.