Incest and children.

[robvalue]

Yeah, you could certainly make a case for regulated parenthood. I just cringe at what that would entail to enforce it. We already have way too many children in care, and removing any "illegal" kids would make this worse. To stop people actually doing it would require stiff penalties, and even then, accidents are going to happen. Agreeing on what is and isn't needed to be a competent parent, or a medically suitable parent would probably cause some sort of war.

The only realistic way I can see this happening is people having some kind of implant/injection at birth which renders them sterile. They then only get this block removed when they have passed a parenting test.