I Dislike the Dog that Likes the Rabbit that I Dislike: Why Do We Like Some People but Dislike Others?
The notion that people prefer similar others is as empirically-validated a research finding as they come in our field (see here, for example). Similar people make us feel better about ourselves, and who doesn’t like somebody that makes us feel better about ourselves? In fact, the preference for similarity is so common that it is considered a general characteristic of the human condition, and it’s not hard to imagine how preferring to hang around similar people, and avoiding dissimilar people, might benefit survival.
Recently, researchers have begun to identify exactly how early this preference for similar others begins to develop. One can’t help but wonder whether this “universal” preference for similar others is nature (i.e., we’re born with it) or nurture (i.e., others, such as our parents, teach us to like similar others and not like dissimilar others).