Cable internet falls into that category too. The common setup in the USA is effectively a municipally sponsored monopoly.
> 1. A free-market dynamic requires an actual market. If the buyer can't chose among competing sellers, then it's not a market. At the grocery store you can choose from among many different sellers: that's a functional market. The point where your plumbing connects to the water main, simply isn't.
Sure but rather than directly hiring N people to run the water works and plumbing crews, the city could contract out the maintenance of those things to a private company. It would still own the pipes and be on the hook for the maintenance, but it wouldn't be directly employing the workers. If company X doesn't work out (say due to crappy service), then they could award the maintenance contract to company Y. In this model, the private company doesn't get a local monopoly on the resource, only a contract to provide the service for some limited duration (say N years).
It may well be that there are services that are not profitable to operate. It's governments job to fund those based on excess tax dollars it collects from other services. A bus route to a poor part of town that it's particularly popular isn't going to fund itself. Government smooths those bumps to provide services where they're needed.