Hunters and gatherers have few possessions. More possessions will drain their strength and are plainly unnecessary clutter. While hunters and gatherers do have the potential of not having friends, most of them travel in packs. Sore feet might be the case also, however, that is not guaranteed. They could have rested well the night before, or be wearing sturdy shoes. No shelters are nearly impossible. Wherever they go they should be able to find a shelter within the proximity of them. Hope this helps!