Jack Schneider, historian of education, writes that Betsy DeVos is an enthusiast about markets but she doesn’t understand how markets work.

In her recent speech at Harvard, she spoke admiringly about the food trucks that have parked around the Department of Education building due to the lack of nearby restaurants. This is a silly metaphor because the government doesn’t pay for lunches, and provision of lunch is not a government responsibility.

But Schneider tears the metaphor apart for other reasons. You can go to a different food truck every day, and you can judge the food yourself, but you can’t switch schools every day, and you can’t judge a school directly, the way you judge a cheese sandwich.

His analysis is more subtle than my representation of it here. The bottom line is that choice in schooling is disruptive without necessarily improving the quality of schooling.

But Betsy is a choice and markets person, without regard to quality or accountability.