@cjd i think the main problem isn't money.
the main problem is decades of brainwashing that kids are too annoying. that one has to settle first. that one has to "live life" first, glorifying bullshit consumption, booze, weed and being depressed. the messaging that big, multigenerational familiy households are annoying.
it's pretty easy to not think about kids when you take enough s(sri)oma.
@cjd i think there is no quick fix solution. germany is pretty liberal in distributing money to parents, still there aren't enough children.