Baby boom

It's been in place in more or less its current form since 1975, have a graph. Colours are generally for 1-4th child if there's a fifth one then that's a tax deduction. Before that there were schemes but they would not kick in for the first child and generally speaking it was even more of a pittance. In primary school, in the 80s, our maths teacher actually did a run-down of how much that money didn't pay for our new shoes.

That's West Germany in the east they spent a lot on free daycare which seems to have had much better results. Plenty of states nowadays do have free daycare at least for poor parents, and generally make the fees income-dependent, but the level of service still isn't anywhere like it was in the GDR where you could also offload school-age kids to the state when they had holidays, summer camps and stuff, but you didn't. Which isn't exactly rare kids get more holidays than workers.

Overall, the reason our birthrate is only stabilised at a low level instead of at a reasonable level is because conservatives care more about supporting family models few people want than about solving the issue. Nah not even "conservatives", it's specifically Catholic conservatives.

And, no, I'm not advocating for re-introducing the FDJ, blue scarves and everything. How about handing organisations like the Scouts some money so they can offer summer camps for pretty much the cost of food. It'd be mostly money to allow adults to not work while running those camps (that is, extend their holidays) as well as some materiel costs. Increased tent wear.