Re: the Legal age of 18
I believe that the reason drinking and smoking gets so much attention in the US from miors is that its illegal. Here the legal smoking and drinking age is 16. AS somebody said, most of the teens smoking do it so they look cool (because its illegal), if its legal then its not something special for them so they wont smoke...
I remember many of my schoolmates smoked when they were 13-14 and stopped when they became 16. I dont think thats a coincidence.