1. Social pressure: Due to the influence of traditional ideas, brother-sister love may be subjected to social pressure and discrimination. For example, it may be considered abnormal that women are older than men, which may affect the stability of love relationships.
2. Different life experiences: Women and men may have different life experiences due to age differences. Women may be more mature and steady, and men may be younger and more impulsive. This may lead to differences and contradictions on some issues.
3. Different family backgrounds: Women and men may have different family backgrounds, which may affect each other's lifestyles and values. For example, women may already have their own careers and families, while men may still pursue their dreams and goals.
4. Different future plans: Due to the age difference, the future plans of women and men may be different. Women may have considered the issue of retirement, while men may still be fighting for their career and future. This may lead to differences and contradictions on some issues.
Generally speaking, brother-sister love may face some challenges, but it is not impossible to succeed. If both sides can understand each other, respect each other, support each other and face the problems and challenges in life together, then sister-in-law's love can be as stable and happy as other love relationships. Of course, this requires both sides to have enough communication and tolerance, as well as sincerity and trust in each other.