By living in an area that has a regulated utility provider. One of the primary requirements I have when choosing a place to live is to make sure the utility provider in the area is a regulated entity.
Well I did, so shrug I guess I’m an outlier. My home search was very limited to one county so I could make sure we were covered by that city’s resources. Besides, I didn’t say it had to be the only reason. Just answering OPs question on how people live with those private unregulated utilities, which I did by avoiding them altogether.