Are kids that had baby dolls better nurturers?

I saw a commercial for a baby doll that grew teeth and you were supposed to actually feed it and basically take care of it. It made me wonder if these dolls helps kids become better nurturers because they’re taught to take care of things with them. I know that some kids just throw them around and such, but do others really take care of them? How does this possibly affect them later in life when they have a real baby?