A guy named Robert C. Townsend wrote a book about running corporations. A generally extendable warning he wrote about is you can't grow a business by aping established companies and their historical path to success. Whatever angle and opportunities they exploited often no longer exist. And what they do currently makes sense for them not you.
Skipping landlines and going right to mobile is an example of that.
It was a lot easier to put one cell tower every X kilometers than it was to run cabling around the country.