I'm 50ish and started at the tender age of 5.....with candy cigs.
Remember those?

They were bubble gum?
You could blow through them and 'smoke' would come out, or what you thought was smoke (wanted to be like Dad)
lol
Then, by the age of 13, I would sneak/steal a Salem from my Dad and crawl under the has to smoke.
Good thing I didn't burn it down, huh?
Stupid me.
By 15, I was really smoking and inhaling, which I continued to do up until last spring....
soooooo just over 30 years was a smoker!