I did some research on this when my wife and I had a child and one of these daycare places cost 4000/ month for our kid. I have a masters and am paid reasonably well and that was still almost half of my wife and my combined income. It was difficult to imagine who can afford to use these places as an option. Many people I know go with the unlicensed child care option (basically someone running childcare out of their home) where the cost are far less expensive. It was interesting that the article never addressed them.