I've always thought it's insane that many developed countries' governments fret about their birth rates, then do absolutely nothing to incentivize having children from an individual's career perspective.
It's not unreasonable social calculus to just say "We the government are going to pay you your potential lost earnings, if you decide to have a child."
In the US at least, existing policy is mostly targeted at family units (via tax credits), which doesn't really bear on an individual's opportunity cost and decision to have children or not.
AFAIK Hungary is trying something like that, I am not sure about the specifics but I think that for every child you have the government lowers your income tax and after your third child you don't pay any income tax. There are some other measures too, all of them were implemented relatively recently, let's say 2015 although I am not sure.
It's not unreasonable social calculus to just say "We the government are going to pay you your potential lost earnings, if you decide to have a child."
In the US at least, existing policy is mostly targeted at family units (via tax credits), which doesn't really bear on an individual's opportunity cost and decision to have children or not.