Actually you probably don't want to do anything with copper/ coax. Not so much because of the cabling but more because of the shitty chipsets and not much competition in that space.
Also copper tends to be quite pricey. If you open the ground, you might just as well lay fibre. It would be ideal to have a pair at each home for redundancy and potential business full duplex 10 Gbps connection or two independent providers each on a different fibre. The extra fibre that you have "just in case" doesn't cost much at all as you just lay it to the nearest node and not further passive MUX/ CWDM/ DWDM or bandwidth sharing can be used from there depending if you want to have active components there.
What are you even saying? My comment was about how even coax internet that many people already have can be extremely fast and wasn't that expensive to lay down in the first place, but isn't used to its full potential because of a lack of competition.
Yes, coax based connections can be quite fast but in practice the chipsets supporting DOCSIS are quite bad or the (usually closed source) firmware is very buggy or probably both. I should know: https://www.phoronix.com/scan.php?page=news_item&px=Technico... e.g. just bridging is often prohibited or configured in such a way that slows down some traffic and you can't do anything about it. E.g. Compal modems were limiting any traffic with protocol 41 to ~ 20 Mbps (up and down) on some networks even in bridge mode. (https://www.root.cz/clanky/pomale-ipv6-tunely-s-modemem-comp..., Google translate works kind of ok for that)
And DOCSIS chipsets seem to not be cheap actually, probably because there is a quasi-monopoly on the chipsets unlike for optics. Also coax networks tend to be configured for great asymmetry (often 20:1), which of course isn't the fault of DOCSIS but it is almost always the case on any internet service over coax (cable TV connections). As a consumer or business, I want the best service possible and that usually means having FTTH/ FTTB for all these reasons.
The best way to ensure proper cabling in the last mile would be to have pipes for cables straight into each home. That way, you could change most data-carrying cables without digging or without digging much. This seems to be the approach with fibre in some countries.
Also copper tends to be quite pricey. If you open the ground, you might just as well lay fibre. It would be ideal to have a pair at each home for redundancy and potential business full duplex 10 Gbps connection or two independent providers each on a different fibre. The extra fibre that you have "just in case" doesn't cost much at all as you just lay it to the nearest node and not further passive MUX/ CWDM/ DWDM or bandwidth sharing can be used from there depending if you want to have active components there.