We have to guard against a kind of moral obtuseness where if we don’t see the harm, that means it doesn’t exist. These poor people can’t afford to send their children off to day camp in the summer so they can do archery and go swimming. They can’t afford an academic program so the children’s achievements won’t dissipate over the summer. They can’t afford to have Mom quit work and stay home to watch them, so they bring their children to work. It is not in any way obvious that the children would be better off if their parents made...