It's not just starlink it's everything else, tesla/spacex, without government, it's a multi-part story
Additionally, there's little competition for starlink because it's such a new tech. There are a bunch of companies working on similar tech that will launch in the next few years. Mobile satellite internet has been pretty shitty in the past with major companies like Inmarsat, Iridium, and Hughes that can only provide slow, expensive links. The best service from Iridium is only good for 700kbps.
They just figured that the other humans were probably up to some fancy shenanigans again, instead being impressed by things like cellophane (granted, they had the benefit of knowing of the existence of the outside world).
I think it might be similar for many isolated tribes. By now they have probably seen enough signs to deduce that the things they're seeing are created by fellow humans, since satellites and planes have been a thing for a few generations now. Especially with satellites having predictable orbits.
Out in eastern Colorado, we put in a deposit at the end of Jan. 2021, and didn't get to actually order a unit until December of 2021.
So far it's been awesome, it's not as fast as starling promises, but it works for streaming, video calls, etc and we've never really had coverage issues driving all over the western US.
It's really a very workable, exists now solution.