@phiofx Lack of know-how? Lack of a use case?
Or alternatively, it actually does exist. I get fiber to the home through a community organization joining together almost 1000 households (so low thousands people or so) in the area; but of course much of the actual management of that is outsourced. Not computing, but definitely networking.
I think your one in 100 is overly optimistic, and frankly it takes somewhat more than "basic Linux administration" to run something for serious use by others.