My son was 3 when I made the switch. For too long he was complaining about not being able to come in the kitchen with me because I was smoking. He would say "I know mommy, I can't sit on your lap because you're having a bad cigarette". Now I don't have to worry about finishing my cigarette when my son wants my attention. I just put my ecig down. I don't run out of breath as easily while playing and I never need a cigarette break or have to worry if I'm blowing a cloud of chemicals in my poor kid's face. Of all the reasons I love vaping, my son is the best reason.