The implication left for a reader of the original article is that tutoring is mostly about exam-prep or that it is under-regulated, ineffectual, and a folly of the rich. But the truth is that the over-regulation of conventional time-based classroom learning is deeply flawed based on our understanding of how people learn. Throwing thirty teenagers in a room at 8am and having a tenured adult speak at them for 45 minutes on a subject is not a recipe for success, nor is moving everyone along at the same pace and calling the material complete after a semester of education regardless of the depth of understanding conveyed. We need intensive and personalized schooling with mastery based learning - and to answer the question of "where are we going to get that many teachers?" we need people to teach as part of how they learn. For some odd reason society only starts to embrace this in graduate school.