Well... If you wash the kids in the near-by creek, or let them swim in the near-by swimming hole so they never have to have a bath (which is what my mother did with us when we were kids and camping!) ... if you cook over an open fire, if you pee in the woods (which is what my mother insisted we do as kids when camping ... and I got poison ivy ... in the "you know where" places) ... If you catch or hunt your own food ... (which my dad did ... he loved squirrel and rabbit hunting) ... if the kids wear nothing but a pair of shorts ... no shoes, no shirt, no under wear, when they go swimming, their clothes get washed at the same time (which is how my mother did laundry, if you are camped in a warm climate, and your camper has no air conditioner, and you have no electric hook-up .... well ... actually ... you could camp indefinitely.