Now and then, non-musician friends express to me their regrets about their own supposed inability to play music. My usual response to this is meant to be encouraging: “It’s not too late to learn!” This is most often met with a doubtful look and a lament about wasted youth.
I find that there is a prevailing attitude that learning a musical instrument is a new trick of the sort that old dogs simply can’t learn, and that if you didn’t start young you’ve missed your chance. I don’t think that’s true.
Do children naturally learn more quickly or easily than adults? Possibly. But if it’s true that children have some sort of built-in edge at learning musical instruments, I would say it’s also true that adults have at least enough advantages of their own to level the “playing” field.