There is an incredible up front cost for wired infrastructure and even Verizon was unable to turn a profit in the long run. Go pull their earnings reports and look at the performance of their wireline division (phone, internet, tv, etc...). It always lost money except for one year where they turned a million or two profit. That's why they sold it off to frontier who will invest the bare minimum and just run it until it breaks. This cost is what's preventing competition. Providers are betting hard on 5g wireless, it requires much less last mile infrastructure (you don't have to run and maintain connections to people's houses).