I think I should add a story to show a smoker can't be blamed entirely on their kids smoking:
I started smoking at 13. I went to Vietnam smoking less than a pack a day, and came home smoking close to 3 packs a day.
Then we had a Son in 1972. I went on to average 2 packs a day until 3 1/2 years ago (46 years of smoking!)
When my Son was about 4 years old, he started drawing stick people. He would always draw one for me, with stick legs & stick arms, and a round head & an oval body.
He would draw a heart in the chest area, and a big black scribble next to the heart.
He'd say, "Dad, this is you!"
I would point to the heart, and say "What is that?"
He'd say, "That's your heart".
I'd point to the big black scribble in the chest, and I'd say, "What is that thing?"
He'd reply, "That's your lungs, and they're Black, from smoking! You better quit Dad!!!"
We all know Mrs Bear had a lot to do with that!
But---My Son is now 39 years old, and has never smoked, so you could say, with the help of Mrs Bear, my smoking actually had an adverse effect on his becoming a smoker.
Bear