> For a lot of families this is the only way for their kids to get out of poverty. By contrast, in countries that have been industrialized for over a century,

> For a lot of families this is the only way for their kids to get out of poverty. By contrast, in countries that have been industrialized for over a century, the preceding several generations found that they could relatively easily find low- to moderate-skill factory jobs that secured a reasonably prosperous lifestyle. There are also industrialized countries with stratified school systems, and I see that some of them fall toward the bottom of the graph.