Interesting remarks from Tim Harford, summarizing a study of friendships among college students:
They found that students in a large, diverse campus sought out and befriended other students very much like themselves. In smaller universities with fewer friendship options, young people had more varied groups of friends because the alternative was to have no friends at all.
This reminded me of something Chesterton said:
The man who lives in a small community lives in a much larger world. He knows much more of the fierce varieties and uncompromising divergences of men. The reason is obvious. In a large community we can choose our companions. In a small community our companions are chosen for us. Thus in all extensive and highly civilized societies groups come into existence founded upon what is called sympathy, and shut out the real world more sharply than the gates of a monastery. There is nothing really narrow about the clan; the thing that is really narrow is the clique….The men of the clique live together because they have the same kind of soul, and their narrowness is a narrowness of spiritual coherence and contentment like that which exists in hell.
I think that Chesterton’s words represent an important truth, but by no means the whole truth. It is true that much is lost in modern society to the extent that people only associate with others like them. But it is also true that much is lost in traditional societies to the extent that people are denied the opportunity to seek out others of similar interests. And also, in traditional societies, the “fierce varieties and uncompromising divergences” of which Chesterton writes are often to a large extent mediated by standardized and ritualistic behavior.