Wait what? You can't do a Paternity test in France?
Because I was once shocked to learn how easily it is in some countries (like Portugal) for a woman to have the court force a man to submit to a paternity test [0].
I also heard (I guess a few decades ago) the courts would start automatically an investigation on their own when no man would recognise a child at birth.
- [0] https://www.tpalaw.pt/xms/files/BANGA_Site/Paternity_investi...
Courts order paternity tests just fine though when there is a reasonable doubt.
The people concerned can always refuse to be tested though.
Intuitively it seems to me this is the most counterproductive law ever as living with this doubt is the best way to destroy a family.