Earlier quoted context omitted.
If we force people to subsidize other people's poor children, we create perverse incentives to have a maximum number of children with minimum personal investment in each. It cannot end well for society. You have it reversed. Not providing, say, an education to all children, regardless of parental investment, will leave us with a large number of uneducated citizens languishing to fend for themselves. That sounds prett…
Historically that's not what has happened. Before the era of government education, education was improving rapidly, with literacy rates rising. As government involvement in education has increased, education outcomes have stopped improving: https://academic.oup.com/qje/article-abstract/111/3/671/1839... I'm making the case that forcing people to pay for the costs of raising poor children will create an incentive for…
You think there are poor people out there thinking: "hey I can have a bunch of kids and they'll all get free educations, let's do it!" Why would they? So that the kid will grow up and get a great job and support them? That's not so much a get-rich-quick scheme as it is a get-rich-in-twenty-to-thirty-years scheme. Plus you'd still have to raise a bunch of kids, which isn't exactly a walk in the park.
And the evidence is on my side. Increased access to education is associated with lower fertility rates, not higher: http://www.un.org/esa/population/publications/completingfert...