The obligation of support only exists between parents and children, so the daughter-in-law has no legal obligation to support the elderly, only the children have the legal obligation to support their parents. If the daughter-in-law does not support her in-laws, this is a moral issue and will be morally condemned; But it does not belong to the legal level, and it will not be punished by law and bear legal responsibility. Support refers to the help of children or younger generations to their parents or elders in material and life.
Children have the obligation to support and assist their parents. Parents who are unable to work or have difficulties in life have the right to ask their children to pay alimony when their children fail to perform their alimony obligations. The main content of support and assistance means that under the existing economic and social conditions, children should provide their parents with necessary necessities and expenses economically, and should respect, care and take care of their parents in life, spirit and emotion.
Adult children with financial ability, whether male or female, married or unmarried, should try their best to fulfill this obligation when their parents need support until their parents die. 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 parents, between adopted children and adoptive parents, and between stepchildren and stepparents who have fulfilled their obligation to support education. Generally speaking, after a child lives independently as an adult, parents no longer have the obligation to support him materially and in life.
Legal basis: Article 14 of the Law on the Protection of the Rights and Interests of the Elderly.
The supporter shall fulfill the obligation of providing financial assistance, life care and spiritual comfort to the elderly and take care of their special needs.
Supporters refer to the children of the elderly and other people who have the obligation to support according to law.
The spouse of the supporter shall assist the supporter in fulfilling his maintenance obligations.
Article 129 of the Civil Code of People's Republic of China (PRC)
Widowed daughter-in-law has done her main duty to support her in-laws, and widowed son-in-law has done her main duty to support her in-laws, so she is the first heir.