According to Ben's androgyny theory, people's sexual orientation can be divided into four types: masculine, feminine, androgynous and neutral. The first two have typical gender characteristics and mediocre individual development limitations; Neutralization lacks obvious gender temperament, individual development is one-sided, it is difficult to play the original gender characteristics, but it has the defects of another gender; Androgyny is the most ideal gender model, which combines the advantages of both sexes and is superior to monogamous people in self-concept, social adaptation, emotional adjustment, stress relief and interpersonal relationship. For example, many people become more mature in middle age, showing androgyny characteristics, such as women are more courageous and men are more gentle. Children need the correct guidance of their parents if they want to have a perfect gender personality. First of all, it is inappropriate to distinguish gender characteristics too clearly. Many characteristics are not exclusive, but should be shared by both sexes, which is also the main purpose of "androgynous education"