What is the quote demonstrating contrast In this paragraph.

In those days, the forties, children were not just loved or liked; they were needed. They could earn money; they could care for children younger than themselves; they could work the farm, take care of the herd, run errands, and much more. I suspect that children aren't needed in that way now. They are love, doted on, protected, and helped. Fine, and yet....

The quote demonstrating contrast is "They could earn money; they could care for children younger than themselves; they could work the farm, take care of the herd, run errands, and much more. I suspect that children aren't needed in that way now."