A country where people don't have children without government manipulation doesn't deserve to survive.
The problem is that statistically, in every nation, when a certain economic plateau is reached, which varies, the birthrate drops to about 2.1 children per family.
This is just slightly less than maintenance rate, but not critically so. However, with government interference, that birthrate can be pushed significantly *lower*.
That is, most often, governments try to mandate standard of living improvements for children. While this may be well and good for the children, it adds pressure to adults contemplating *having* children. Already stressful and difficult, each new government idea is the final straw to many couples who just give up on the idea of having children at all.
In a nation that prides itself on how well children *must* be treated, both by law and by social pressure, the birthrate drops like a rock.
So all that I really proposed it to *artificially* create conditions (with some improvements), that *naturally* occurred in Levittown and many other places in the US right after WWII, resulting in a baby boom.
Only a weird demographic and social situation could create such circumstances in the first place, back then; so it is quite difficult to re-create them intentionally. And this is where the subtle "authoritarianism" I spoke about earlier comes in: a strong, behind the scenes government that *protects* the artificial environment.
In other words, once the right kind of people are enticed to live there, the wrong kind of people have to be kept out, so that they can't interfere or impede the right kind of people having children. In addition, specialists, such as ministers and OB/GYN doctors, are brought in *on the understanding* that while preaching or administering medical care, they also encourage procreation.
This project is so vital to a nation that it warrants building or rebuilding a new city, just so people will be encouraged to have children. The jobs they are given are real jobs, but they are given to the people not out of any great economic need, just to help support them and encourage them to have children.
Only on the surface does it seem bizarre that a government would do so with the sole purpose of making tens or hundreds of thousands of "Cleaver" families. Encouraging such families could make an ordinary nation into a powerhouse in a generation or two.
Remember that authoritarianism that benefits a nation, its families, and its people as individuals, may not be such a bad thing after all.