Now I kinda wish you hadn't said your age... I'll be turning 19 in a month and I somehow had the idea you were at least 4 years older than me.
If you think I'm too mature, you have clearly never seen me drive. Red lights, stop signs, those funny double-lines bisecting the road: all mere suggestions, rather than rules On the other hand, I do not drink or smoke or screw around like my compatriots, so I suppose I am slightly more mature than the average college freshman.