The ISP provides the Internet access, while another organization provides the infrastructure to talk to the ISP. This model is used in data centers where a sin

The ISP provides the Internet access, while another organization provides the infrastructure to talk to the ISP. This model is used in data centers where a single company is selected by the owner of the building and they are responsible for all the wiring (it would be very expensive and a lot of redundant wiring if multiple companies could do that), but selecting an ISP is a matter of just using a short patch panel in exchange room. You can easily switch ISPs or use several of them. Currently when ISPs own the last mile they are only motivated to have speed that's marginally faster (typically DSL) and cheaper (typically wireless). There's no motivation to improve especially after FCC killed net neutrality, since slow speed can actually make them money by prioritizing traffic. If last mile is separate, ISPs always will be motivated to be fastest and cheapest because the customer can easily switch between them. The last mile is primarily responsible for laying fiber cable and do repairs if it is broken. If they won't do their job, both ISP and users won't be happy and they might end up being replaced by someone else.