(1) The family court may, when pronouncing the adoption of a person of full age, on application by the adoptive parent and of the person to be adopted, rule that the effects of the adoption are based on the provisions on the adoption of a minor or of a related minor (sections 1754 to 1756) if
a) a minor who is the brother or the sister of the person to be adopted has been adopted by the adoptive parent or is adopted at the same time or
b) the person to be adopted was taken into the family of the adoptive parent when they were a minor or
c) the adoptive parent adopts the child of their spouse or
d) the person to be adopted is not yet of full age at the time at which the application for adoption is filed with the family court.
Such a provision may not be made if overriding interests of the parents of the person to be adopted are inconsistent with it.
(2) The adoption relationship may, in the cases governed by subsection (1), be cancelled only by applying the provisions of section 1760 (1) to (5) accordingly. The application of the person to be adopted takes the place of consent by the child.