It's been a week since my 18th birthday and I'm still getting acclamated to considering myself 'an adult' but it dawned on me that, hey, I really am an adult now! Ah, what a double-edged sword that is. It all kind of struck me as I was glancing through the teen baby forums and thought, "Should I even be on here anymore?". Now I'm that much further away from my childhood and from being granted leniancy in the eyes of the law (going to have to be a law-abiding citizen now, darn lol). Conversely though, I've gained a bunch of freedom and can be all like "RESPECT YOUR ELDERS!" lol.
Come to think of it, turning 18 is kind of like becoming a teenager all over again with more freedom and responsibility. You still have to wait until you're 21 to drink (at least in America). =P