You can start a company right now and lay fiber in these places and start your own telecom.

You probably don't have the money for that but, if you put together a solid business plan, a bank would give you a loan.

You may not have the experience or expertise to do that, but there are plenty of people who do.

Why hasn't that happened yet? It turns out that laying down miles of fiber for a handful of customers isn't profitable.

Google dod it in a few places that were low hanging fruit. Places that had telephone poles where they could get relatively easy access to them.

There are certainly places where access to those poles is more difficult than it should be but most places are hampered by either being too remote to justify the cost of burying lines to a few customers (rural areas) or the digging is too expensive to many customers (suburban areas) because they'd be digging up streets.