Should their be a law where paternity test should become a default whenever a child is being born?

We see many cases of children being born we without knowing who their father or mother is. This is happening all around the world.

To me that's completely unacceptable. Every child should have the right to know who both of his parents are and therefore I find it necessary that it should be astablished at birth whether people like it or not. For the sake of the child people should be forced to give off their dna to be able to do a test in the case if its unknown who the real parents of the child are.

This also makes it more difficult to traffic children that aren't registered
Should their be a law where paternity test should become a default whenever a child is being born?
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