I am 40 next year and quite looking forward to it, i like being older. There's a lot to be said for it!
I think i felt old the day i left my 20's behind! after that, it didnt bother me anymore.
I turned 43yrs in December and it doesn't bother me at all that I am no longer in my 20's. Back then I knew nothing, now I have wisdom and I'm having more fun than I ever had.
I'm dreading turning 27... very close to 30 and then 30 itself will be somewhat dismal and depressing. But still got some years left till then so will worry about it later
grrr ... spurslady!!! well (namedrop here ) Tim Burgess told me he couldnt believe I was old enough to be going to see them back in the 90s (thats the charaltans btw)