Why do some older people on here feel the need to use age as an excuse to gain superiority over younger people?

They don’t realize that age has nothing to do with understanding, not even experience does. Wisdom comes from being able to learn from something. All ages can do this depending on how much they’re willing to keep an open mind which many don’t, so they end up acting like kids anyways because god forbid someone didn’t share their opinion or consider their feelings enough. Since when did someone respecting or agreeing with you help you learn something new? How about never.