Legal analysis: Parents can entrust their children to sue as agents, and a power of attorney is required. The children can use the power of attorney to sue in the name of their parents. Relevant laws stipulate that parties and legal representatives may entrust one or two people to serve as litigation agents. To entrust another person to litigate on your behalf, a power of attorney signed or sealed by the client must be submitted to the People's Court. The power of attorney must clearly indicate the entrusted matters and authority. An agent ad litem must have special authorization from the client to admit, waive, change claims, conduct settlement, file counterclaims or appeals on his behalf.

Legal basis: "Civil Procedure Law of the People's Republic of China"

Article 58 The parties and legal representatives may entrust one or two people as litigation agents. The following people can be entrusted as litigation agents: (1) Lawyers and grassroots legal service workers; (2) Close relatives or staff of the parties; (3) Citizens recommended by the communities, units and relevant social groups where the parties live.

Article 59 When entrusting another person to litigate on your behalf, a power of attorney signed or sealed by the client must be submitted to the People's Court. The power of attorney must clearly indicate the entrusted matters and authority. An agent ad litem must have special authorization from the client to admit, waive, change claims, conduct settlement, file counterclaims or appeals on his behalf. The power of attorney sent or entrusted by citizens of the People's Republic of China living abroad must be certified by the embassy or consulate of the People's Republic of China in that country; if there is no embassy or consulate, it must be certified by the embassy or consulate of the People's Republic of China in that country. The certificate must be certified by the embassy or consulate of a third country with which the People's Republic of China has diplomatic relations in that country, and then certified by the embassy or consulate of the People's Republic of China in that third country, or by a local patriotic overseas Chinese group.