Which people here on Earth do you think is most like the Na vi?
I think one of the candidates must be the Sentinelese on Northern Sentinel island in the Andaman islands, Indian Ocean. They are Hunter Gatherers, they are one of the most isolated peoples in the world and they vividly defend their freedom, their land and independance against modern society and exploitation. They live in a non destructive manner in harmony with the nature. They have lived in the area for more than 30 000 years (some say 60 000) and for some people their island and life style can nearly be seen as a life on another world, in another time.
Perhaps one can consider them as one of the last free peoples on Earth.
Sentineli men aim their bows at foreigners
Sentinelese people - Wikipedia, the free encyclopedia