Is it me?

Am I so arrogant?
I went to an 80′s dance party yesterday in P-60. It was great fun, but everyone my age was so fucking young!
Am I mature for my age? Or am I just plain stupid and not seeing that other people have a different view on life and enjoy their younger years more?
People my age still live at home, still go to college or are in their first job. I’ve been working full time for 7 years now. Does that make me different?
I realise how childish this comparison must make me look ;-) So I’m probably just arrogant…