For Survival, Group is usually the best recourse. For a No civilization and basic sword & magic fantasy. This means if you sprain your ankle you will have no recourse but to injure it further to survive under normal circumstances.
A quote that is attributed as something Archeologist Margret Mead is to have said "Mead said that the first sign of civilization in an ancient culture was a femur (thighbone) that had been broken and then healed. Mead explained that in the animal kingdom, if you break your leg, you die. You cannot run from danger, get to the river for a drink or hunt for food. You are meat for prowling beasts. No animal survives a broken leg long enough for the bone to heal.
A broken femur that has healed is evidence that someone has taken time to stay with the one who fell, has bound up the wound, has carried the person to safety and has tended the person through recovery. Helping someone else through difficulty is where civilization starts, Mead said.”
Her saying it being true or not; it very much applies in your question as which is better and why.
