Which moment made you finally understand "Why do old people get bad?" ?

In fact, as the Internet said, it's not that the old people are getting worse, but that the bad guys are getting older. They rely on their old age to support themselves, and a few old people bully them with the attitude of "Who dares to mess with me". Because I tasted the sweetness when I was young, but when I am old, I feel older and more willing to do whatever I want.