wow that's very inspirationalYou are never too old to become a musician. At what level is entirely up to you and your work ethic.
I am a huge music (guitar) fan of all types. I swore to myself when I turned 50 I would start in on Jazz and Classical guitar. I bought a very nice classical guitar when I turned 50. I started playing guitar when I was approx. 20 yrs old. I've been in some cool bands, opened for some big acts, but all in the rock-metal genre.
I turned 52 last week. I have made some progress in both areas, but I am learning to read music and it is a bitch for me. I can shred around all day over chords and my ear is very developed. So on one hand it is easy to hear melodies and intervals and cheat my way through, but reading it while I play....I sound like a brand new guitar player with about an hour of practice under my belt.
The point is, with a family and sports and dogs...I just don't have the time. But I do what I can when I can, and I enjoy the hell out of the challenge. I want to be able to play a few pieces correctly before I die, so that is my goal. I call myself a musician, so you can too.