Legal analysis: If the wife is not at fault, the in-laws have no right to blame without reason. If the wife is at fault, the in-laws are also responsible. After all, they are elders, and it is also appropriate to point out the shortcomings of the younger generation.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 1067 If parents fail to perform their maintenance obligations, minor children or adult children who cannot live independently shall have the right to ask their parents to pay alimony.

Parents who fail to perform their maintenance obligations, lack the ability to work or have difficulties in living have the right to claim alimony from their adult children.

Article 1068 Parents have the right and obligation to educate and protect their minor children. If a minor child causes damage to others, parents shall bear civil liability according to law.

Article 1069 Children shall respect their parents' marital rights and shall not interfere with their parents' divorce, remarriage and married life. Children's obligation to support their parents shall not be terminated by the change of their parents' marital relationship.