Tribal UBI has had mixed outcomes. Payments that are below practical livability seem to help as an augmentation to income and for reducing poverty. In tribes where work is not necessary or limited to a couple months per year to live comfortably (the latter case common for tribes with a large resource extraction business) you see much more evidence of rampant social pathology rather than mere poverty.

Anecdotally, having grown up in and around various tribal communities, people will consistently replace work as a source of purpose with some other purpose of their own devising. Unfortunately, most of the time people will choose a purpose that is socially destructive in the absence of a default purpose that is socially beneficial. A consideration for designing a constructive UBI system is institutionalizing new sources of socially beneficial purpose that can be easily adopted by people that lose work as a purpose. Insufficient thought is put into this latter problem, I have seen little evidence that this will happen organically.