Can a 19 year old be a legal guardian of a 16 yr old cousin?

In most jurisdictions, a 19-year-old may not be considered capable of being a legal guardian for a minor. Typically, legal guardianship requires individuals to be of legal adult age, which is usually 18 or 21, depending on the jurisdiction. It's advisable to consult with legal experts or social services for guidance on alternative options for supporting your 16-year-old cousin.