How to understand the blind date's saying that "whoever is my daughter-in-law enjoys happiness"

There are two meanings. "Whoever is my wife will be happy." This is another mother giving you bait. Her old man likes you very much. I hope you can be his wife. I met such a lovely parent on a blind date. I said this and listed the benefits of his family and his son one by one. The son is hard-working and willing to work, and the ancestral son listens to his wife honestly. The future in-laws will have a high retirement salary, and some small families at home will not have to worry about their children. Old people are reasonable and don't participate in housework. It seems a great loss not to see his son and marry him. Blind date girls really spare no effort to increase their affection for their sons. I can't wait for this girl to marry her son at once. As long as you marry my son, you don't have to worry about anything, money, house and car. Someone will take care of your children. If you want to go to work, rest at home and enjoy yourself. Faced with such a beautiful life, the girls must be more or less moved.

Another meaning is that the boy's mother is a little arrogant, even a little arrogant. This mainly depends on the scene and attitude of the other party saying this sentence. If it is particularly arrogant, it must be what it means. Don't think that you are a girl, so you have a sense of superiority on blind date. My son is the best, and his family is rich and even powerful. You deserve my son. It's a little tall. Come to my house to live a housewife's life, you have to weigh it carefully.