There’s a great book on the subject if you’re curious how a free society could function and sustain. It addresses all the common questions:

* Who will build the roads

* How would we have national defense without them turning and taking us over

* How would violent and non-violent crime be handled

* How would we avoid the tragedy of the commons

It blew my mind when I first read it. I changed from a reluctant minarchist to proud ancap.