buy a cigarette You must be 21 to cigarettes, tobacco products in Michigan Raising Age for Buying Cigarettes:

Hollywood and Big Tobacco were entwined for decades, with stars endorsing brands and some releases actually sponsored by tobacco companies

We weren't sure how much he was going to smoke yet, but I had made some comment early on because he doesn't smoke and is very healthy where I said, 'Just make sure you don't smoke it like a high-school girl.' He must have taken that as a challenge because by the first day of filming he was smoking a cigarette like it was a joint." - Cary Fukunaga, True Detective director and producer (x) "I remember on the first day of shooting being struck by the way he smoked a cigarette

Theres no hard data on the prevalence of the illness

Some say its harmless