"These societies are not the remnants of an outdated, ancient way of life from the distant past. For many hunter-gatherers living in the 21st century, staying mobile is a deliberate choice because it enables large and complex societies – societies that look more like mobile constellations than villages or cities."
https://aeon.co/essays/the-hunter-gatherers-of-the-21st-century-who-live-on-the-move