Why not invent another life-stage past childhood for young adults, during which they are expected to learn, find mates, and raise young children? Really, we're most of the way there with college, but with the weird and biologically contrary expectation that the students avoid having children. Our biology and our psychology seems to encourage human beings to have children at a younger age than our society would have it. Also, the removal of children seems to reduce sexuality to only its hedonistic dimension, which I think is a bit out of balance. (Nothing wrong with hedonism, but that aspect exists in a larger context of life.)
Why not restructure colleges and vocational schools in this way?