Who can legally sign for a minor?

The ability to sign for a minor legally falls to a competent adult or legal guardian, which is why this option is correct. In legal contexts, minors are generally not recognized as having the capacity to enter into contracts or make certain legal decisions on their own. Therefore, a responsible adult, typically a parent or legal guardian, is designated to handle these responsibilities on behalf of the minor.

A competent adult or legal guardian has the legal authority and responsibility to make decisions concerning the welfare, finances, and legal matters of the minor, ensuring that the interests and rights of the minor are protected. This structure is designed to safeguard minors from exploitation and ensure that their best interests are prioritized in any legal agreements or decisions.

The other options generally do not hold legal weight. Minors themselves lack the legal capacity to sign for themselves in most circumstances, while simply any family member does not have the authority unless they are the designated guardian. Lastly, a designated social worker may provide support but does not have the legal position to make decisions or sign on behalf of a minor without specific authorization.