First, if you are suitable, you will not be seen by others, nor will you be pointed at by others. Generally speaking, the quality of marriage is judged by others. Although marriage needs to be managed by itself, it will be very uncomfortable for others to say ugly words. If you two don't go to the right place, assuming that the woman's family conditions are better, then outsiders will say that this man is eating soft rice. If the man's family is better, then the neighbors will have more stories. He might say, this woman wants to fly to the branch and become a phoenix. This woman is a woman who is particularly greedy for material comforts, and she is not really married to this family at all. So if you want to live a down-to-earth life without being pointed at by others, I think you should pay attention to this problem, otherwise you may be particularly depressed in others' spit.
Second, a suitable marriage will bring a stable relationship. Because there are comparisons between husband and wife, even two married people will secretly compare each other and themselves, and material conditions are also an aspect of their comparison. Generally speaking, men don't like women being richer than themselves, which will put more pressure on themselves, while women will think that men will become bad if they are rich. If a man is richer than himself, he is likely to keep mistresses and flirt with other women. So two people's feelings should be stable. Only in this way can we ensure the stability of marriage.
Third, a suitable family can avoid parents' pressure on marriage. If you two are not suitable, it will be difficult for your marriage to start. Parents will directly veto marriages that are not supported by their parents. You will feel embarrassed after marriage, and the two families will not be harmonious. At that time, the pressure from parents will also make you feel that this marriage is difficult to maintain.