All jokes aside if you want to really look at it, Gohan is giving his wife and daughter the father and husband his family never had. He probably grew up seeing his mama struggling and sacrificing on her own to provide a better life for him. Probably even saw her talking reckless towards Goku on facebook (especially around Father's Day) and he didn't want to be the same way when he had his own family.
He may have fallen off, but he can at least say that he's saved the world and was more powerful than Goku in the past.