Well I'm 32, I am a little overweight, wear the ponytail and the right around beard/moustach. And I already found my first gray hairs between my otherwise ebony mane.
And the fact is that I no longer look out of place between middle aged rockers attending gigs by bands like Status Quo. I'm slowly but surely turning into one of them.
I didn't say that's a bad thing though, I am catching up with a lot of fun I missed in my teen years and as a twenty something due to the extremely busy life I had in those days. I make friends with a lot of musicians who are in cool local bands, I built a name for myself as a good guitarist and I've become a well respected and well liked figure in the local music scene.
So yeah, I'm turning into an old rocker but loving every minute of it.