Minors – Age of Majority – Michigan
(1) Except as otherwise provided in the state constitution of 1963 and subsection (2), notwithstanding any other provision of law to the contrary, a person who is at least 18 years of age on or after January 1, 1972, is an adult of legal age for all purposes whatsoever, and shall have the same duties, liabilities, responsibilities, rights, and legal capacity as persons heretofore acquired at 21 years of age.
(2) A court may order support payments for a person 18 years of age or older as provided in 1 or more of the following:
(a) Chapter 84 of the revised statutes of 1846, being sections 552.1 to 552.45 of the Michigan Compiled Laws.
(b) The child custody act of 1970, Act No. 91 of the Public Acts of 1970, being sections 722.21 to 722.29 of the Michigan Compiled Laws.
(c) The family support act, Act No. 138 of the Public Acts of 1966, being sections 552.451 to 552.459 of the Michigan Compiled Laws.
(d) The paternity act, Act No. 205 of the Public Acts of 1956, being sections 722.711 to 722.730 of the Michigan Compiled Laws.
(e) Act No. 293 of the Public Acts of 1968, being sections 722.1 to 722.6 of the Michigan Compiled Laws.
Chapter 722, §722.52.
Age of Majority
Through marriage, military service, or by judicial petition at age 16 (722.4 et seq.)
For necessities only (common law, §600.1403)
Ability to Sue
By next friend or guardian of estate; if age 14 or over, can select own (Mich. Court Rules Rule 2.201 (E))
Consent to Medical Treatment
If pregnant (§333.9132); HIV or venereal disease treatment (§333.5127); substance abuse treatment (§333.6121