It is the duty of grown-up children to render service to their aged parents. This practice should be reintroduced into present society. Otherwise, what is the use of family life? Proper family life means that the husband should be protective, the wife chaste, and the children grateful to their father and mother. Children should think, "My father and mother gave me so much service. When I was unable to walk, they carried me. When I was unable to eat, they fed me. They gave me an education. They gave me life." A bona fide son thinks of ways to render service to his father and mother. And just as a woman is expected to be faithful to her husband, so the husband should be grateful for her service and protect her.

(From "A Second Chance" by Srila Prabhupada)