1. Traditional ideas
China's traditional concept from ancient times to the present is "men are older than women", which seems to be a more reasonable relationship between men and women and family composition. If women are older than men, they will be questioned and opposed by their elders. The love between "elder sister" and "younger brother" is a rebellion against tradition and must be resisted by many traditional concepts.
2. Is it really love?
Sister-in-law loves to get along with men and women sometimes, and is likely to regard feelings as love. Women are older than men and generally have the complex of maternal flooding. Women are born with a caring complex. For men younger than themselves, it is possible to regard daily care as love.
Men also have Oedipus complex, thinking that older women care about and love themselves. In this case, sometimes both sides will regard emotional care as love, and sometimes it is really difficult for both sides to distinguish clearly.
3. Life factors
When a woman is old, generally speaking, her heart has become peaceful. She wants a stable marriage, a reliable husband and a comfortable home. For men younger than themselves, their careers may be unstable and their economic strength may be insufficient at this time.
And with the growth of age, women can't always wait for men to be stable. At this time, women will be more realistic and cautious. Maybe they really love men younger than themselves, but in the face of reality, women may still choose to give up.
4. Psychological factors
Women generally mature faster than men. Even at the same age, women are more mature than men. As for men's immaturity, women may be able to accept it for the time being, but if men are always immature, women may gradually lose patience psychologically and feel bitter and tired inside.
And it takes time for a man to mature. It was acceptable at first, but after a long time, the more childish the little man will be exposed. How much patience does a woman have in the face of such an immature "brother"?