https://www.techdirt.com/articles/20210222/15160046296/study-shows-california-telcos-are-simply-letting-their-networks-fall-apart.shtml

On the one hand, it's understandable that US phone companies companies don't want to maintain aging copper phone networks in the wake of sagging usage. On the other hand, traditional phone networks are very much still in use (especially among vulnerable elderly populations), many of these DSL lines remain the only option consumers can get thanks to spotty US broadband deployment, and much of the phone and DSL infrastructure was heavily subsidized by American taxpayers. Oh, and as Texas just realized, many of these older copper phone lines still work during disasters, when internet voice services don't.

As such, there are numerous regulations that prevent these companies from just severing these lines completely. But US telcos, tired of traditional phone and residential broadband service, want to shift focus. So instead of a responsible transition plan (one that might mandate even coverage of wireless or fiber broadband upgrades they don't want to perform), many of these companies are simply letting the networks fall apart. And refusing to repair the lines when they fail. In large part because they know US state and federal regulators will (usually) be to chickenshit to actually do anything about it.