That's the important part.
This should contain only factual information, regardless of "feelings" or "wishful thinking."
Well, not really. As it's a legal document, it should contain
legal information. If two women or two men are the child's legal parents, certainly it should say so on the birth certificate. If a sperm donor doesn't want to be legally responsible for the child, obviously his name wouldn't be on the legal document.
But I'm not sure how that works. When a woman has a baby and gives it up for adoption, is she still listed on the BC? I'm guessing not, otherwise it would be a simple matter for all these adopted kids to find their birth parents, and that doesn't appear to be the case.
Also, if a woman has a child as a surrogate, who is listed on the BC? My understanding is that it's the two legal parents, not the birth mother.
We do know that if a woman has a child through insemination from a sperm bank, the donor's name is not on the BC.
So already birth certificate information can contain what they legal parents of the child want it to contain, which is why I ASSumed that same-sex parents were both listed on the BC even though one of them is obviously not a biological parent.