The opposite was true with us. Sprint bought my phone company 25 years
or so ago and they ran new underground fiber to the hubs and new
underground CAT 3 to everyone.
My DSL is a solid 10mb 24/7
The cable guys acted like their coax was already all the bandwidth
they could ever use so they didn't do anything. It is still on poles
tho so any little blow takes it out and a lot of that 40+ year old
cable is starting to show it' s age. Until they give a ****, it won't
get better.
Our lines were always underground.
Power and TV cable is still on poles here.
There are places that have everything underground but only new
communities. We are the oldest community in the area.