"In general, hunter-gatherers do not have a concept of toil. When they do have that concept, it derives apparently from their contact with outsiders. They may learn a word for toil to refer to the work of their neighboring farmers, miners, or road construction workers, but they do not apply it to their own work. Their own work is simply an extension of children's play. Children play at hunting, gathering, hut construction, tool making, meal preparations, defense against predators, birthing, infant care, healing, negotiation, and so on and so on; and gradually, as their play become increasingly skilled, the activities become productive. The play becomes work, but it does not cease being play. It may even become more fun than before, because the productive quality helps the whole band and is valued by all.
My reading about life in many different hunter-gatherer cultures has led me to conclude that their work is play for four main reasons: (1) It is varied and requires much skill and intelligence. (2) There is not too much of it. (3) It is done in a social context, with friends. And (4) (most significantly) it is, for any given person at any given time, optional."