Interesting thought but I think I don't fully agree.
There are communities that use their own currencies or none at all for most of their needs. Some live on subsistence basis or a gift / barter economy (mainly in rural areas in developing countries), some have local currencies (hippie/eco-village communities).
They will usually need a little bit of fiat though, to buy goods like phones / electronics or fuel. But in theory this is also possible to do in a barter economy: simply offer something people "outside" of the community need, bartering it to a phone or food. You don't need necessarily fiat for that. Nor do you need Bitcoin.
The only problem is taxes, where the authorities may require a payment in fiat - but that is also a hurdle for Bitcoin.
The Rautes, Awa tribe, and the Yanomami and Sentinelese remote indigenous groups are examples of communities that have isolated themselves from modern market economies. The government doesn't care about them because their population is insignificant and their lands don't have valuable mineral resources. They would have been forced to use fiat if the government wanted that to happen.
Bitcoin remains one of the best means to bypass some of the financial restrictions placed by the government.
Exactly.
This is why I've been using the term "Exit" for Bitcoin for as long as I can remember. An exit out of the existing centralized and inflationary fiat system into a decentralized and deflationary system that cannot be censored.
And yet some people are still busy looking at the price and panic each time there is a tiny drop

The majority of the people who buy Bitcoin are not aware of it dentralised and deflationary features. They are just interested in profit, so they are always looking at the price.