The law in the US has a strong bias toward paternity, even if it does not fit the facts. One area I would like to see fixed is opt-out for paternity when both bio-parents agree in writing. I'm thinking of cases where two women in a marriage want to have a child, and there is a convenient sperm donor like one of their brothers. The only way you can donate sperm now with no legal strings attached is through a sperm bank. Seems silly to make those women go through that and pay all that money, when all they need is a turkey baster. Or some more natural thing shaped sort of like a turkey baster.

I think a lot of men would volunteer to help make their niece or nephew, if it could be done safely.

Educating anyone benefits everyone.