Paternity tests should be mandatory at birth

What are the reasons for and against mandatory paternity tests for all newborns?

The usual arguments I hear for why they shouldnt be mandatory:

1. The man can buy a paternity test himself and use it before he signs the birth certificate

Usual response to this argument: This can only help if the man isn’t married to the woman. Husbands are assumed to be the father and his name goes on the birth certificate by default.

As a result, even if he does a personal paternity test and it turns out that he’s not the father, he will still be forced to invest in a child that’s not genetically his. He is still on the hook for child support for 18 years

2. The man shouldn’t marry a woman he doesn’t trust

Usual response to this argument: Nobody would marry a person they don’t trust. When someone is cheated on, a trusting person is tricked by a deceitful, devious person.

Good, honest women have nothing to lose if paternity tests are mandatory, and good, and honest, trusting men are protected by these mandatory tests

Dishonest, deceitful, devious women are the only ones protected by paternity tests not being mandatory.

Why protect the deceitful women who commit paternity fraud?

Additionally, mandatory paternity tests would also remove the stigma associated with “not trusting your wife”

If paternity tests are mandatory for all newborns, this means that everyone takes it, so no woman would ever feel offended, or feel like her man doesn’t trust her, as is the case with optional paternity tests.