Everyone whose ISP offers it uses it, yes.

Do they manage their ISP’s network? Don’t be pedantic.

ridiculous, the vast vast majority of people just plug in what the ISP provides them, and thats it.

perhaps you could explain how its such a new paradigm and mental model that it simply confuses people? because I dont buy it, its without exaggerating a smaller difference in so far as this goes, than when people get a new microwave oven, and substantially less difference than when people switch phone brands.