This hit me like a ton of bricks.
Growing old is a blessing.

Ten pounds of personality in a five-pound bag
You don’t become cooler with age, but you do care progressively less about being cool, which is the only true way of being cool. This is called the Geezer’s Paradox.
Found via this Mastodon link: https://mastodon.sdf.org/@obster/111142670514548111