It's valuable to you as a person who has kids.
You will note the majority of people in the US will not have kids.
Why should I pay for your kid? You have to put yourself in the shoes of the person who doesn't have kids. Or the business owner who actually has to hand out the money. I support the payment because I have kids, but at the same time I'm able to play the devils advocate and see the other side of the equation rather then blindly support something in my own self interest.
To further the point, the decision whether to have a kid can be influenced by how that affects someone’s own finances. These programs put a finger on the scale to encourage having children, something that financially to the individual doesn’t make sense with modern jobs. Many countries have negative pop growth today and that *will* be a national financial problem
Why make me pay for that?
Negative population growth has benefits. Japan doesn't have a housing crisis like the US.
Like I said two sides to every story. I'd rather have flat population growth not positive growth and helping me pay for child care in a cause I don't believe in is not fair.
The fairness argument is just a general argument against all redistribution of wealth, if you are against all redistribution then many popular programs and policies are already failing your moral test.
What do men not take care of kids? Don't we already give benefits to people who are married?