Get a clue, hon! Smoking KILLS! Not only is it a FACT that it cause cancer but it is a very nasty habit. It ruins your hygiene with constant bad breath and yellow teeth along with the smell impermeating your clothes.
Now, smoking is a choice and if that's his (or anyone else's) that's perfectly fine. Go right ahead. But don't even think that there is NOTHING WRONG WITH IT! Once you have to watch (or better yet, take care of) someone you love as they suffer in pain day & night and wither away from lung cancer (or any type of cancer) because of
SMOKING - maybe you'll see the light. When you have to say goodbye to them as they lay in their casket, maybe you'll understand.
