Mich. Comp. Laws § 722.752

Sec. 2. A minor under the age of 16 years shall not loiter, idle or congregate in or on any public street, highway, alley or park between the hours of 12 midnight and 6 a.m., immediately following, except where the minor is accompanied by a parent or guardian, or an adult delegated by the parent or guardian to accompany the minor, or where the minor is upon an errand or other legitimate business directed by his parent or guardian.