> I can't raise the kid for 18 years on my fond memories of paternity leave.
How does that make it less of an incentive, though? It's better than no paternal leave.
In the end, though, people usually don't get children on a purely economically rational basis. Sweden also has daycare prices that scale with income, free and relatively high quality public and private schools, child benefits and free dental and healthcare for children.
A recurring cash payment meeting or exceeding the costs of raising the kid on the other hand...