In r/askfeminists there are endless threads about paternity testing and unsurprisingly most posters there are against it.

But in the long game, paternity testing is actually good for everyone (except cheaters), regardless of gender.

The only people who benefit from an absence of testing is cheaters, because obviously they'd be caught if there was testing.

So assuming a woman is not a cheater and she raises her kids not to be cheaters, her family will never benefit from an absence of testing.

However the people who benefit from testing are the ~2% of men whose wives cheat on them. If her family line doesn't die out, every woman will eventually have a male son or grandson or great etc grandson who is cheated on, and they will benefit if there is testing.

So even for women, if they aren't cheaters their family will ultimately benefit more from testing than a lack of testing.