John C. Wright describes himself as a recovering libertarian:
For me, the intoxicating spell ended in three sharp realizations, each one as forceful as a thunderbolt.
The first was when I had sons, and I realized that I could not maintain libertarian neutrality on how to raise my children. I had to teach them right from wrong, virtue from vice, and teach them prudence, justice, courage, and fortitude. Most of all I had to teach that morality is an objective truth. But teaching virtue is not like teaching geometry. Such things can only be taught by example. It has to be part of the mental environment. The culture always teaches the fundamental values of the culture, parents or no, because virtue is a habit.
Every moral lesson I wished to inculcate into my children was contradicted by a thousand examples in modern media. They tried their damnedest to teach my children error, to make their filth seem normal and cool. They were trying to addict them to vice, greed and lust most of all, but also to moral apathy disguised as tolerance, and envy disguised as equality. In states where marijuana has been made legal, it’s being offered in candy and soda pop, in order to lure the young and make customers for life.
I realized that the culture surrounding me was my enemy. Imagine being an antebellum Southern abolitionist trying to raise children to believe that all men were created equal, but with the entire slave-holding society, by a thousand silent examples, teaching the opposite. Even with the best will in the world, it is not possible for a mortal man to shield his children from everything in the culture. Should I live in a cave?
Libertarianism says my neighbors do me no wrong by exposing my children to child pornography, provided only force or fraud is not used. There is no public and objective standard of decency, honesty, prudence, and justice present in the libertarian theory: but a libertarian commonwealth could not stand were its children not trained from infancy to be decent, honest, prudent and just. It is, in short, a self-eliminating theory. It is a theory for bachelors.