As far as I know, government has existed always. (See Iron Law of Oligarchy) bec

As far as I know, government has existed always. (See Iron Law of Oligarchy) because in the end, decision making must occur to concentrate capital and to prevent defectors, and decision makers are extremely valuable to a population.

So whether pater-warrior, headman, chieftain, council, republic, multi-house-government …. government has always and always must, exist. The question is not whether it must exist, but the method of decidability, and the scope of those decisions.