The U.S. sorta did this in the copper days: the local/incumbent phone company owned the copper from the home to the CO (central office) and then phone service could be handled by either the ILEC or CLEC. And you could dial-in to whatever ISP you wanted. This was intended to provide some amount of competition.
https://en.wikipedia.org/wiki/Competitive_local_exchange_car...
https://www.bandwidth.com/glossary/competitive-local-exchang...
But once you could get voice & data from either the telco or the cable company, this all went out the window.