You're never too old to learn the guitar. It just depends how far you wanna go on the instrument. As long as you're determined, I can assure you you'll be playing more than just three chords. And yep, like what lester mentioned, it's a never ending journey as you play and learn.
I'm organizing a small S.O.F.T acoustic geetar gathering/dialogue session with the other guitar newbies as to help them with any queries about guitar they have in person. No confirmation about the date, time and location yet though. You can follow up and express your interest here.