MommyJogger I wouldn't worry. I grew up in a house where no one smoked. It was just never acceptable. Sure I tried it a few times in my late teens and early 20's but my dad was so anti smoking he threatened if I ever borrowed the car and it smelled like smoke I'd never get the car again. He made me so terrified to get caught. Lmao. Once I hit 23-24...and saw people around me dying of cancer (which your children will know people) it hit me how awful it was and I refused to even "social" smoke. So I never became a "smoker"....just make it totally unacceptable in your house and your kids won't pick it up. My parents have 3 kids and not one of smokes!