well, all i remember about being in bands in my 20's was the fantastic attention we used to get from the opposite sex!
Nowdays 40's we are completely invisible except to old blokes who come up after gigs and say how we transported em back to thier youth, and " i used to play a strat/in a band" etc, etc, etc...
seriously, don't worry if some treat you with a little ignorance, what i would give to be your age with the so called "experience" of my older years (still probably f**k up my chances though!)