Not to be confused with the plastic ducts the fiber optic cables are often placed in.
Makes perfect sense for the last mile to be run by the government, just like the last mile of roads are.
Then you can have choice of ISPs. Or run your own.
if you want to an ISP which gives you a real IPv4 address, a guarenteed service and known contention ratio -- say they buy a couple of 10G lines from two diverse upstream providers like HE or Tata to a central location, land on a 52 port switch, and use it to serve their customers with 400mbit each way guaranteed and upto 10G if there's capacity.
On the other hand if you just want basic broadband with contention meaning that you could run into problems if everyone is pulling 50mbit, even though you can burst upto 1G, and perhaps you have CGNAT, you'll be paying less for it (the 10G uplink is spread out over more people), but that's your choice
This empowers the customer and ensures competition in the market, while the basic costs of fibre from a central internet exchange point are borne by either taxes or access charges (if you use the circuit you pay $5/month)
so, basically what we have now for non-muni net in most places with telco+cableco duopoly?
Your implementation may be good.
Living in NY it should not stretch your imagination to think up what an implementation that meets all those criteria would look like.
Municipal broadband is the hip new thing right now so nobody half-asses it. I expect in time (like over the next 80yr) it will follow the model of other government services and everywhere that can afford the graft, boondoggles and BS will have the graft, boondoggles and BS and the Detroits and BFEs who simply can't afford to do it wrong it will be the only ones left with municipal broadband done right.
That said, if a town or city wants to do their own broadband they should be able to do so without state interference. Local government is best government. Allowing the towns to have a "well we could DIY it and not buy your services at all" option as a backstop when negotiating with ISPs furthers competition in a market that is otherwise mostly devoid of it IMO.