I'm 70 and still play guitar, started when I was 12 and played in several bands in New Zealand in the 60s and 70s. It was my full-time job for some of those years.
At the moment I have an old PRS Custom 24 and run it through a 30 year-old Mesa Boogie Caliber 50. I haven't played a gig in 25 years but still play most days at home or with friends.
Me with Les Paul, 1972: