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, uncle, sibling or any other
person related by blood or affinity.
It shall be unlawful for any person who is under the legal age to purchase
alcoholic beverages, to knowingly possess without legal authority or knowingly
consume any alcoholic beverage on private property.