First of all, I don't think this is inevitable. The most important thing is whether you are sincere to a person. When I was in primary school, I was basically a friend nearby who went to school with you. Because I am young, there is no such thing as insincerity. In junior high school, the thoughts in the early youth were still very simple, but the circle of friends was relatively expanded, and almost everyone wanted to be nice to you. High school students are becoming more and more mature, and the learning tasks at this stage are heavy. Most students who can communicate with each other are students next to their seats. There is a saying that after a long time, they may become familiar, and this familiarity will develop into a deep friendship. When I was in college, I lived in a dormitory. The concept of class is becoming more and more vague, and making friends is very selective. Generally speaking, I will find friends I like and want to make friends with.