Those with higher incomes and education levels come from families with higher parental interest in the success of their children...interest in their children succeeding more than the parent did...interest in sacrificing for the next generation. It is parental interest which is the primary predictor of success of children, and parental interest is often (though not always) repeated for the next generation. It can be found in parents with lower income and lower education levels. My father never went to college, but all of his children earned masters or doctorates. The parents that put their kids in the charter schools are more interested...and therefore the educational environment there is better.
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