Age does not bring wisdom. Often it merely changes simple stupidity into arrogant conceit. It’s only advantage, so far as I have been able to see, is that it spans change. A young person sees the world as a still picture, immutable. An old person has had his nose rubbed in changes and more changes and still more changes so many times that that he knows it is a moving picture, forever changing. He may not like it–probably doesn’t; I don’t–but he knows it’s so, and knowing is the first step in coping with it.
But as you experience more you do know more
About some things. You also lose knowledge with time as well as mental acuity. The brain is a leaky memory storage device.
Robert Heinlein