Since that's when child support begins, maybe the man should be required to sign the birth certificate or a DNA test gets done on all the possibilities.
That is exactly what happens now. No man has to sign the birth certificate, even though he will be pressured to do so, if he shows up at the hospital. If the man refuses, there is nothing a woman can do, other than sue the man for support claiming parentage.
It is when the man doesnt know about the court date, and doesnt show up, that the woman recieves a default judgement against him, and then he is screwed. He must go to court and demand paternity tests. Only when they come back negative is he off the hook.
The point is; Fraud-committing mothers and Courts dont want paternity proven, they want it implied so that it can be assigned without delay. (for-the-children) Men should demand paternity tests ALWAYS no matter the harm it might do to the relationship. Better to spare relationships by making DNA tests mandatory. Courts and legislators are against this, because it will open a pandora's box that they would rather keep closed.