As used in this article, the following terms shall have the meanings
indicated:
GUARDIAN
A person who has qualified as a guardian of the underage person pursuant
to testamentary or court appointment.
RELATIVE
The underage person's grandparent, aunt or uncle, sibling or any
other person related by blood or affinity.
The consumption or possession of alcoholic beverages of any type on
private property by a person who is under the legal age and without legal
authority is prohibited.