To some extent, that already happens. My wife and I had children in our late 30s and so got extra screening and ultrasounds to screen for possible devastating birth defects. Fortunately, both kids are healthy, but had they not been, we'd have been pretty far from "taking our chances".
In our case, the resources were a good health care package from my work, but it's not very far from there to designer-by-selection. I'm perfectly comfortable with our path, even though we didn't have to take any action, but would have been equally comfortable (though disappointed) had we had to intervene.
This happens in some countries even if you don't have flash insurance. Obstetric care like the above is on the state here in New Zealand. Not that complex parenting situations like 3x biological parents occur here.
In our case, the resources were a good health care package from my work, but it's not very far from there to designer-by-selection. I'm perfectly comfortable with our path, even though we didn't have to take any action, but would have been equally comfortable (though disappointed) had we had to intervene.