well 29 years old,
started sneaking smokes at 11-12,
started smoking 13
19-22 got up to 3 packs a day
tapered back after i got out of the military to 1pack a day,
quit altogether for a month or 2 at a time but always started back after a night of drinking.
started vaping a little over a month or so ago, and haven't had a cigarette since day 1, and that's including labor-day weekend festivities!