The student's commitment letter probably means not to swim in the river without authorization, and then the student signs it. All commitments and contracts signed by primary school students with no civil capacity? Is invalid. This is an inevitable conclusion under the premise that this commitment itself is legal and effective. Parents' commitment letter probably means educating children not to swim in the river privately, and parents will do a good job in educating and supervising their children and fulfill their guardianship responsibilities. Then the parents' signatures. On the premise of the same presumption, the letter of commitment signed by parents can be regarded as "educating children not to swim in the river without permission" and fulfilling their educational responsibilities. In this practical operation, any parent will do it, but no one can guarantee the result. "Parents will do a good job in educating and supervising their children and do their guardianship duties." The problem of guardianship responsibility is to distinguish who is responsible for the guardianship of children. During school hours, children are placed under the supervision of parents, and the school does not bear the responsibility for accidents. During the school period, that is, during the school custody period, the school must be responsible for the accident, and it is impossible to be excused because of signing a promise. What's more, there is no exemption clause in this undertaking, and even if there is, it is an illegal agreement, which is invalid from the beginning. The so-called commitment letter, to put it bluntly, is a means to meet the requirements of safety work. Schools, education authorities, and safety production management departments? Many departments need to have something to say when reporting.

Legal basis: Article 165 of the General Principles of the Civil Law. If the power of attorney is in written form, the power of attorney shall specify the name of the agent, matters of agency, authority and duration, and shall be signed or sealed by the client.