Sec. 7. (a) "Adult", for purposes of IC 31-19-17 through IC 31-19-25.5, means a person who is at least twenty-one (21) years of age.
(b) "Adult", for purposes of the juvenile law, means a person other than a child.
(c) "Adult", for purposes of IC 31-11, means:
(1) a person at least eighteen (18) years of age; or
(2) a:
(A) married minor who is at least sixteen (16) years of age; or
(B) minor who has been completely emancipated by a court;
subject to specific constitutional and statutory age
requirements and health and safety regulations that remain applicable to the person because of the person's age.