I am too damn old to learn this lol..
Dats crazy talk!
I didn't get serious until I was 41. Now I'm playing in my second band and do solo gigs in bookstores and coffee shops. With the technology available today for learning an instrument and all the great teachers who can really communicate whats important to learn, there's no excuse for anyone not to learn to play any instrument they want to play. You can even take serious lessons online.
Learn some simple blues songs (like Mustang Sally or I Got a Woman) find a blues jam, sign up, tell em you want to play a couple of songs, and rock the hell out of em, everybody will have a good time and you'll be hooked.
And don't ever look back...