Poland showed that this works, among others. 
https://image.nostr.build/884eee98847f177ebc383ca15f8a83659b75664b88a87b2dac936bdcbc4ca8de.jpg

"There is no systematic accounting of specific pro-natal initiatives around the world, but recent years have seen dramatic expansions in pro-birth policies in Hungary, Poland, Greece, Korea, Japan, Finland, Latvia, and others."

https://image.nostr.build/31bd160f38780caf35f2fe176e5272ce8db4fd0f7a349b965dbead7317973b80.jpg

Finland too. https://image.nostr.build/2fdbcd0fb5b9b42c05c06d276e02aa84373cc2c90afda4149bee50c544cb27b7.jpg 

 Important context: that $10K is paid out over the child's first ten years i.e. $1000 per year. 

https://www.bbc.com/worklife/article/20191017-does-it-make-sense-to-pay-people-to-have-kids