- https://en.wikipedia.org/wiki/Federally_Administered_Tribal_...
"Since the 9/11 attacks in the United States in 2001, the tribal areas are a major theatre of militancy and terrorism. Pakistan Army launched 10 operations against the Taliban since 2001, most recently Operation Zarb-e-Azb in North Waziristan. The operations have displaced about two million people from the tribal areas, as schools, hospitals, and homes have been destroyed in the war.[1]"
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A quick internet search also suggest a number of other articles in other areas:
https://duckduckgo.com/?q=%22autonomous+region%22+violent+ex...
Any such territory would become a failed state almost immediately. The eventual outcome will be for it to be re-absorbed by the state it split from (see East and West Germany), or become a puppet state of a larger neighbour that supports it financially for its own geopolitical ends (North Korea).
If the basis of any territory is opposition to centralized government, it's safe to assume that the people it attracts are also ideologically opposed to state-provided services like roads, streetlights, police.
Of course these are ideological objections, and they tend to disappear once it becomes clear what the reality of living in an 'every man for himself' society is like.
The settler's options then are to either rebuild these services from scratch, or partner up with a neighbour state to leverage their infrastructure.