acting your age, not your shoe size

I am 26. I wear size 6.5 - 7 shoe.

I can't decide if it is a positive thing or a negative thing that people often guess that I am younger than I actually am. I will confess, in addition to my height disadvantage, I do tend to be on the lower end of the 26 spectrum. While I am not bothered by the following, they do perhaps set me apart from most other 26-yr-olds of this world:

I don't own my own home, nor work at a 'professional' job.

I don't even own my own car (it's a car in my name, but technically it's provided by work).

I am single, never been married, and I have no children.

My dress is a wide range of things, from casual-fun to prepped-out office girl.

I am practical. I like to be comfortable, what can I say?

When it comes to my actions... I do tend to be fun-loving, silly, sarcastic, and less-embarrassed about the little things that tend to set others in a tizzy-fit. Of course I realize that there is a time and a place for most types of behavior. And lately I can definitely sense the difference in age of the college students under my care and myself. The life experience just hasn't reached that point yet. So why do they often guess me as their contemporary? Perhaps the difference is more inward and less apparent in it's outward manifestation. I am comforted that some with a more trained eye for maturity can sense that though I look young, I am indeed passed the point of my bachelor-degree days of university. Of course, I am not agruing by any means to portray that I am a boring oldie. As my contemporaries age they will just have to eat their hearts out... because I've got young blood.