Your responsibility as a parent is not as great as you might imagine. You need not supply the world with the next conqueror of disease or major motion picture star. If your child simply grows up to be someone who does not use the word "collectible" as a noun, you can consider yourself an unqualified success.
Smoking is, if not my life, then at least my hobby. I love to smoke. Smoking is fun. Smoking is cool. Smoking is, as far as I am concerned, the entire point of being an adult. It makes growing up genuinely worthwhile. I am quite well aware of the hazards of smoking. Smoking is not a healthful pastime, it is true. Smoking is indeed no bracing dip in the ocean, no strenuous series of calisthenics, no two laps around the reservoir. On the other hand, smoking has to its advantage the fact that is a quiet pursuit. Smoking is, in effect a dignified sport.
Until I was about 7, I thought books were just there, like trees. When I learned that people actually wrote them, I wanted to, too, because all children aspire to inhuman feats like flying. Most people grow up to realize they can't fly. Writers are people who don't grow up to realize they can't be God.