Why do people say "Wait until you're 18"

[LIP]

i never actually heard that one before and i started smoking the stuff when i was 15 and loads of people knew.but i remember being told once that even if you smoke weed at 16 once or twice it can really fuck up your brain because its not fully delvopped, never laughed so hard in my life what a load of bull, well am 18 now and i dont seem fucked up to me. As some were talking about people being persuded into doing it most of my lot didrnt smoke it, i did it because i wanted to see what it was like and plus if you tell someone to wait till your 18 or not to do it thats just gonna make people do it more. (not thats its a bad thing to smoke weed at all.)

Very true.

That's why there'd be no point giving it a legal age if it was legalised, because lets looks at the facts - Kids DO NOT abide by them, kids are going out drinking and smoking cigs... they'd do the same with cannabis, and really, theres nothing wrong with that.

But preferably, for my kids i'd prefer them to only smoke once they're 16.