The age limit should be sixteen because thats when you get to drive if you can drive you should be able to smoke if you think different your an idiot
Every individual should be allowed to risk their own lives, without government hand-holding. There should be no age limit for buying tobacco products.
I believe it should be raised. I may sound like a hypocrite because I AM a smoker. I started under the age of 18 and I have regretted it since. I believe, whether you think so or not, your maturity level (mind and body) is not fully developed enough to make that decision.