Given the size of their population and scale of their expansion, it is difficult to make universal generalizations regarding their social structures. However, some commonalities can be ascribed.

As with all Kalmet, and to a lesser degree all humanoids, Humans are immensely social, seemingly preferring to live in groups of at least 40 individuals or more. These groupings on the smaller scale, referred to as bands by [the Assembly] are exceedingly egalitarian. Childcare is often communal, one of many attributes that point to these smaller groupings being more communal on the Communal-Individual spectrum.

Of course, this communal behavior begins to give way to more individualism as the scale of a given human settlement grows. Indeed, those large groups with resource abundance tend to favor some form of hierarchy and stratification. Generally speaking, communal behavior is still attested in communities within a larger groupings, but that society as a whole can be said to be more individualistic.

All told, Humans run the gamut in diversity of societal structure, but tend toward egalitarianism where it's feasible, even within larger societal groups where individualism is considered more the norm.