In Quebec at least there are places with no phone service. Your choices are satelite or silence. Both of my mathematical collaborators live in places that are dialup only. One 100 km north of Montreal and the other in central Massachusetts.
My mom still has dial-up. She uses the Internet very little, and only for applications which require very little bandwidth, so it’s not worth it to her to pay more than $8 a month.
Unfortunately, nowadays even many applications which don’t require much bandwidth use it anyway, because the designers got sloppy and wasteful.