I use to be that way, but I am catching up. I have a pic of me holding my baby daughter and I ask visitors how old they think I was. They usually say 18...I was 29. Not so much anymore.
Lots and lots younger than my actual age..... On a moonless night in out cellar with the door shut and the light off I can pass for almost any age as long as I can keep my mouth shut long enough........ :)
People generally seem to think I look younger. My avatar picture was taken when I was 24 (I'm 26 now) and I was often mistaken for several years younger, which I am cool with :D
For a number of years I would say quite a bit younger but now that I am 60 and my hair is mostly grey (unless I rinse it out) it has pretty much caught up with me.