These problems begin when a man signs a birth certificate, unknowing of the fact that the child that he has just signed his life away for, isnt his.
If a man knows a child isnt his, he doesnt have to sign the certificate at all, and the woman is then forced to PROVE paternity in court.
This is what the courts want to avoid. You have never seen such pressure as that for a man to sign that certificate IMMEDIATLY upon the birth of a child. Once they have his signature, it is all over for him if he is wrong. The courts will not help him.