Snark is not really welcome on this, the situation can be much more complex than you state. The article makes it clear that there are different categories "pare

Snark is not really welcome on this, the situation can be much more complex than you state. The article makes it clear that there are different categories "parents" and "birth parents". Also, "parents" is plural. (in your example that might include "fathers") My cousin is a parent by adoption to two and is a very good mother to a family. The children also have birth parents and while they have never been in contact, the children are in contact with their siblings who were adopted by other families and meet up regularly. They also know their birth-grandparents.