As I write this I’m listening to a concert with legendary jazz saxophonist Lee Konitz. You can tell his stamina isn’t what it once was, but his ideas are still incredible. The 82-year-old Konitz held his own quite well with his 20-something piano player.
As long as you can physically hold your tools and wave them around — or even dictate your ideas to someone else, you’re not too old to do this. Laura Ingalls Wilder didn’t get published until her 60s, and Grandma Moses was even older than that when she did her best work.
In the creative world, there’s no such animal as “too old” or “too young.” The right age is whatever yours is right now.