This Brave New World has mind-boggling ethical questions and issues.
Consider this moral quandry from the Brussels Journal - A gift of a human
Let us add a confounding variable to the situation. Extending the adoption metaphor, let us posit that the mother offering you her child does so with the declaration that the child is useless to her. If you refuse, she will slit her daughter’s throat and leave the child to die. Your course of action seems obvious enough: you take the child immediately and spirit her to safety, away from the mad mother.
This is a seemingly extreme scenario, but it is not an unrealistic one. When the child in question is a frozen embryo, non-utility to the parent is the usual determinant of life or death.