As a man, I support tradition, and my son-in-law has no obligation to support her parents-in-law! However, I don&;t support you. The son-in-law has no obligation to raise her parents-in-law. It is limited to the fact that the woman&;s family has brothers! If you are an only child, that is your responsibility and obligation. You should be able to think of it when you get married! What&;s wrong with getting the benefits of your parents-in-law when they were young, but not wanting to provide for the elderly! The only child, both parents must be treated equally, even if their parents pay more! The wife has a brother, and three festivals a year are added to honor and visit her birthday. The rest depends on her mood and conscience!