Why do many people like to make fair-weather friends and eat and drink together?

Xu Zhiyuan's "Thirteen Invitations" program invited Mr. Yu Qian as a guest. Mr. Yu Qian seems to say that he likes to make fair-weather friends. The reason seems to be that at his age, all the truth has been understood through his own life. I don't want to listen to my tutor when I eat, so I am very happy to make some fair-weather friends and eat and drink happily together.

If the subject thinks that it is a waste of time and energy to make fair-weather friends now, it can only be said that the subject is still enthusiastic about life and hopes to continue to struggle and not waste time on unnecessary social activities. I think this is a good thing for young people. However, it cannot be said that middle-aged people like to make fair-weather friends, so it is meaningless. In the busy and tense life, it is a pleasure to find two or three friends to drink and eliminate thousands of troubles.