Ok. So let's talk about the two scenarios here if you can't afford kids.
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You're taxed for childlessness, likely at an amount above the cost of a child or two, to "encourage" you to have children. You are now unable to afford that tax and thus, risk jail.
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You have a child when you can't afford it to avoid the tax, and now have to bring up a child you cannot afford to raise in a government that actively doesn't want to help you in any way.
In short. You're fucked either way.