There's no reason why we can't require leasing for all carriers, ISPs etc, to any company that wants to lease it. That works just fine for DSL. I recall having the option with DSL. Obviously I chose my telco and had good service and decent billing. That was a fine arrangement.
When it comes to cell phone service? I can use any pay as you go carrier, sure, but not on the Verizon network? What do I get in return for that, I can use a verizon phone on any carrier. Except I can't, cuz they're violating their agreements with the FCC. Screw these cell carriers.