you're gonna have to give specific examples of native societies that operated this way. And don't recite fairytales written by the romanticists of the 1800s lol

also, assuming you're right, and assuming they lasted any significant period of time (which none did)

"largely" anarchist with "vague" heirarchy isn't the same lol

and "free to leave" and live on your own never turned out too well unless you're okay with your sons fucking your daughters (eg eskimos)