i've met some genuinely awesome people throug the internet of all places, but i wouldn't discourage you at all. if he wanted to chop you up and kill you, he probably wouldnt have been in the market for a guitarist...he would have been on a brittney spears message board trying to start a boy band.

but what do i know? the only thing i would think about is the practicality of jamming with someone twice your age or whatever. not that things like that dont work, but unless you guys have some ideas brewing for songs or whatever, i would save yourself the awkwardness and at least write some **** so you dont have to sit there empty-headed if there's no juices flowing.