Yes.
Same with my daughter and my son.
My daughter is 22 - left school, had a gap year, completed degree at university, had another gap year, but when out shopping during the day people will ask - "no school today?"
People always take Erich to be younger than he is, damn it. He's considerably younger than I to start with, but looks even younger than he is. I'm sure people think I'm robbing the cradle.
In real life, I look younger. On the Internet, I seem older. My apparent age on the Net is slowly catching up with my real age, though; when I was fifteen, people guessed twenty; nowadays I get "late twenties" and I'm 25.
Don't know where, but somebody assumed that looking younger is quite normal for Aspergers, because many of us don't show emotions as much als NTs do and so our faces don't crinkle that early.
I don't know if that's the reason.
An interesting thought has arose from reading this thread, do autistics look older at a younger age (around teenage years) but then age slower after that?
At fourteen, and 5'7" I was mistaken for twenty. At eighteen, twenty-seven. Then at twenty-seven, people thought I was nineteen. A couple of weeks ago someone thought I was quite young to have fifteen-year-old twins - he assumed I was three years younger than his forty-year-old daughter, instead of ten years older.
I'd assmed that it was my long hair that fooled people, and that the head shave would make me look properly old; but it doesn't seem to have worked! 
No, I usually get mistaken for older. When I was twelve, I was routinely mistaken for a senior. Of course, I was one of very few seventh graders at the local alternative high school, so naturally people thought I was at least a little older than I was really, but still- a senior?! I always thought it was odd because I am short, very flat-chested and have a round face, so to myself I look young; sometimes like I haven't even hit puberty (although now that my hips have grown I don't look like that any more!). My mother explained that I'm usually mistaken for young until I open my mouth- then my use of language and firm grasp of difficult concepts, as well as my expansive knowledge base, convince people I'm far older. I can converse intelligently on most any topic, so this usually happens very quickly after people meet me, whether or not the conversation makes its way to one of my interests (then I REALLY blow people away and they think I'm in college!).
It's actually really annoying. Once I was at a family friend's party, and this college student started hitting on me after having conversed for a while on a subject of mutual interest. It must have been really obvious, because I noticed it, and I'm normally totally oblivious to flirting. I must have been about thirteen, fourteen at most at the time. It's a little flattering, but still icky.
I am 20, but I am constantly mistaken for being 15 or 16 everywhere I go. I think it has more to do with the way I dress, though, rather than my actual looks. I think if I did my hair up, wore more makeup, and dressed in more "mature" clothes (that is, not hoodies and old jeans), I would probably look my real age.
To Natalie: If you want to look older, here is another way you could do it. When you get gray hair, you could just not do anything to hide the graying and just let it stay. I found my first gray hair a few weeks before my 14th birthday and so far, I haven't done any dyeing or plucking. I hope I get more of them so it'll be noticed and I'll be able to pass for my 30s.
I've had a few gray hairs since I was about 15 (I think that's normal), but since my hair is already light brown/dark blonde they are almost impossible to notice.
One of my guy friends is 22, and about a third of his hair is already gray, but it actually looks pretty good.
Theoretically you are supposed to ask for ID if they look under 30. I always looked for wrinkles and checked IDs if I didn't find them.
Theoretically you are supposed to ask for ID if they look under 30. I always looked for wrinkles and checked IDs if I didn't find them.
Yeah, my mom is around 40 and she still gets checked sometimes.
I think mine would have. She is quite young-looking, and as Aspie as I am. She's in her 50s now, though, and getting gray hair and wrinkles; so she looks like she's in her late 40s.
Hehe i look younger then i am and im only 25 lol, old enough though then 20+ though glad i keep a manly rough unshaven look
My dad has been told that he looks younger, an effect which is augmented when his facial hair is shaved (especially since he has greay facial hair, though not really on top of his head - he's about 50).
When I was in elementary and junior high school I always got mistaken for someone much older, mainly because of my height (when I was 6 I was mistaken for 9; when I was 8 I was being mistaken for a 12-year-old). However, I've been told I have a youthful appearance in my face, and that my demeanor is often childlike.
Most people think I'm younger than I really am.
I got carded going into a bar in New York when I was 30 or 31.
At my daughter's wedding earlier this year one of her husband's friends asked if I was my daughter's sister, which I found quite funny.
Usually people assume that I'm between 10 to 15 years younger than I am when I let them guess. It happens that they're a little shocked when I say that I'm 43. It cracks me up.