Just about 64 y/o - and I'm getting close to where walking is becoming problematic. I walked, carrying my bag, 18 holes twice this year and I was really tired at the end. But, I still carry that chip on my shoulder about power carts, I've never liked them, so I like to throw my opinion around on the topic. Golf is a whole different experience when the round is walked. Finding golfers who walk in the state of Michigan is pretty rare anymore. Even The Walking Golfers Society has fizzled out: https://thewalkinggolfer.com/.
Signed,
Mr. Dinosaur