2. First of all, I think it's quite normal for an in-law not to show his children, because he has raised his own son, and he also has to raise his own grandchildren, which is really too tiring. I don't think the old man is obligated to give childcare, and I don't think it's an obligation for you to give him old age, because it should be his son who gives old age to the old man, not you, the daughter-in-law. By the same token, the old man did not bring up his daughter-in-law, the daughter-in-law naturally has no need to provide for the old man.
: Alimony, refers to the children or late generation of parents or elders in material and living help. Includes two kinds of cases: alimony obligation alimony obligation
(1) children's alimony to parents. The Constitution provides that adult children have the obligation to support and assist their parents. China's Marriage Law also stipulates that children have the obligation to support and assist their parents, and when children do not fulfill their obligation to support, parents who are unable to work or have difficulties in life have the right to ask their children to pay alimony. The main content of alimony is that, under the existing economic and social conditions, children should financially provide their parents with the necessary necessities and expenses, and should respect, care for and look after their parents in their daily lives, spiritually and emotionally. Adult children who are financially capable of supporting their parents, irrespective of their sex or whether they are married or unmarried, shall fulfill this obligation to the best of their ability in accordance with the law when their parents need support until their parents' death. Children's obligation to support their parents occurs not only between children born in wedlock and their parents, but also between children born out of wedlock and their biological parents, between adopted children and their adoptive parents, and between stepchildren and their step-parents who have fulfilled the obligation of upbringing and education.