If, when you were five, your parents had told you that you would thank them later for the coercive education to which they were subjecting you, would you have believed them or not? And what would have made you think that they were lying to you?
Coercion impedes progress by impairing error-correcting processes. “The right of the parent over his child lies either in his superior strength or his superior reason. If in his strength, we have only to apply this right universally, in order to drive all morality out of the world. If in his reason, in that reason let him confide.”
Taking Children Seriously is neither utopian nor revolutionary. It is fallibilist and respects tradition as well as the growth of knowledge.