That seriously sucks how you can't drink/smoke/go clubbing till ur 21. But it has it's good side. At least you won't get bored of it all when you're 21. I'm 22 and bored of clubbing now.
Here it's 18 for all dat. But I started drinking (casually) @ 19. I don't smoke, and I don't go clubbing much

I used to.