The same with public transport. Unless it reaches everywhere, it isn't usable. That is why early electricity producers PAID big bucks to get everyone hooked up. But they would only do that where it made sense. Getting a line out to the farms often didn't. And so they didn't.
Society NEEDS infrastructure even in areas YOU as a person never use. That road to nowhere DOES go somewhere and those people at the end need it.
And if the need is so great, they will find a way to fill it. Take our resourceful residents of Kauai for example:
Island DIY: Kauai residents don't wait for state to repair road
And if left on their own, without forcing everyone to pay for it, one of two things would happen:
1) The people leaving themselves out in the middle of nowhere will pay a premium among (hopefully) several competing delivery firms.
2) They would move to a location more amenable to service. (Location,location, location)
Don't believe it? Go live in areas of the world where only individual interests are catered for. Somalia is nice for that.
Ah yes, the half-assed "go move to Somalia" argument. The mess Somalia was left in is the result of post WW2 intervention and the damning effects of the previous socialism that existed there and its gun toting neighbors of Ethiopia and Kenya.
"From a U.S.-backed Ethiopian invasion and brutal military occupation that left more than 16,000 civilians dead and forced hundreds of thousands to flee their homes, destroying the first semblance of normalcy the country had experienced in nearly two decades, to an ongoing U.S. war involving CIA torture chambers and drone strikes, Somalia has been ravaged by powerful nation-states, not anarchy.
But hey, let's put that all aside and just concede for a moment that Somalia is in fact some anarchist's wet dream, "a libertarian's paradise." Let's just ignore the fact Somalia was ruled by a military dictator for decades and not make the cheap point that the period preceding its current "anarchist" stage therefore indicts anyone who believes in the justness and necessity of centralized power."
See : false dichotomy of Somalia