I "volunteer" at my son's middle school Bluegrass Club - my son plays guitar in it, and I sit in with the bass section (three of us). As may or may not surprise you, despite my age I am not the most technically proficient of the three (the other two are eighth graders, both are very solid, but one of them has some impressive chops). But I do add value - I've been in bands forever and feel like I am showing them how to hold things down. Anyway, I say "volunteer" because it is actually just plain fun for me, and some of these kids (esp a couple of girls on fiddle) are REALLY good. We played an annual fundraiser for the local non-profit that raises money for local schools (including arts and music) last night at Sweetwater (Bob Weir's place here in Mill Valley), with the Grateful Bluegrass Boys. Man it was fun. No real point other than - play music with kids. They will love you for it, but you will love it the most.