The first question at the Berkshire Hathaway shareholders meeting was asked by "AI Buffett"

Greg, I have been following this company for quite a long time, and I have also told people around me that I have no intention of selling a single share of this company's stock. My question is very simple: I am 95 years old, and now, except for time, I have nothing else. I want to tell my shareholders one thing: why should they continue to hold, especially to hold Berkshire's stock for the long term? Could you answer this question?