When friends or parents smoked, teens were more likely to become daily smokers. On the other hand, they were less likely to become habitual smokers when their parents had a positive family management style. That included monitoring their comings and goings, doling out reasonable punishments for rule breaks and rewarding good behavior.
Study: Parents influence teens' smoking habits
August 26, 2009 A study in the journal Pediatrics followed teenagers who had become occasional smokers before high school and found that 58 percent made it a daily habit by 12th grade. But the likelihood of that happening depended partly on friends and parents.