But does that correlation still hold in developed countries? I guess reasons to have more kids in poor countries is that they'll help you with your work and tak

But does that correlation still hold in developed countries? I guess reasons to have more kids in poor countries is that they'll help you with your work and take care of you when you are old. Besides, some of them are going to die prematurely, so you need to create more to have some successes. The cost for having a kid might be low. In developed countries things are pretty much turned on their heads in that respect?