My all time pool hero was Mickey McGuire, a local bookie who won our weekly 9 ball tournament on his 80th birthday, beating a top Washington area player (Freddy Boggs) in a hill-hill final. I was "only" 49 at the time, but from that point on, my ambition was to duplicate Mickey's feat, and on my 80th in 2024 I took my wife with me to the tournament to take pictures. She was there when I won it on my 51st birthday, and she's often my good luck charm.
Alas, I went 4 and out. But the next week I won it, and I've won it several times since then. The beauty of pool is that as long as you can see and maintain your basic hand-eye coordination, always concentrating on your stroke fundamentals, there's really no limit as to how long you can play. AFAIC it's all in your head.