Another article said that the state was refusing to accept official Utah birth and marriage certificates as legal evidence.
Because they could be forged.
Or because they could just be handing out the birth certificates to whomever they will to *prove* that girls were 18 when they got married.
A birth certificate has names on it but no other form of ID. How would you know which child the birth certificate went with?
If I come along with a kid and a birth certificate, that doesn't prove that that child is mine.