(2) This subsection applies to an agreement between parents or guardians of a child so far as it relates to when 1 or more specified persons have the role of providing day-to-day care for the child or have contact with the child, or to the upbringing of the child, or to any combination of those matters.
(3) An agreement to which subsection (2) applies cannot be enforced under this Act, but some or all of the terms of the agreement may be embodied in an order of the court if, under 1 or more provisions of this Act other than this section (for example, under section 48(1)),—