Two more words - activist judges.
The last thing I wanted was for some activist judge to later decide that some grandmother/aunt/uncle/third cousin twice removed should have visitation rights to my child.
Or, had rights to your child, period. I already posted about that occurrence happening a while ago. People regretting that they gave the child up for adoption; and, they get the child back, years after that child had been living with a family --- the only family they had known. I believe one of those birth families, married each other in order to look better to the judge, so they could get that child back. They ended up divorced just a couple of years later; and, that child went from a stable family, to a situation where the parents end up separated and divorced soon after they get the child back.
I think the judges who were giving these children back to their birth parents --- years after they had been living in a home with married parents, and sometimes siblings, were a real spur for foreign adoptions.