Your mindset is that kids are somehow encapsulated and isolated property and not full individuals who are lacking any real agency, who will grow up as member of the community to the quality that their upbringing allowed them.

Spending money on ensuring children have healthy and safe childhoods is both the easiest moral and easiest social financial decision of all time.

Children cannot decide to be alive, they cannot decide the environment they are in, they cannot decide their parents, or make any reasonable effort to change those circumstances. It doesn’t matter what decisions their parents make or made, we still have a choice to either let those without agency suffer or not.

Beyond that, if you have the moral backbone of some worm, then think about this: children who grow up financially secure result in adults who are simply more productive and less costly than those who are not. To the point where an adult who had that security during childhood will easily contribute far more than it cost for that security. They are already earning their keep.