Ochs and Izquierdo noted, in their paper on the differences between the family lives of the Matsigenka and the Angelenos, how early the Matsigenka begin encouraging their children to be useful. Toddlers routinely heat their own food over an open fire, they observed, while “three-year-olds frequently practice cutting wood and grass with machetes and knives.” Boys, when they are six or seven, start to accompany their fathers on fishing and hunting trips, and girls learn to help their mothers with the cooking. As a consequence, by the time they reach puberty Matsigenka kids have mastered most of the skills necessary for survival. Their competence encourages autonomy, which fosters further competence—a virtuous cycle that continues to adulthood.The cycle in American households seems mostly to run in the opposite direction. So little is expected of kids that even adolescents may not know how to operate the many labor-saving devices their homes are filled with. Their incompetence begets exasperation, which results in still less being asked of them (which leaves them more time for video games). Referring to the Los Angeles families, Ochs and Izquierdo wrote, “Many parents remarked that it takes more effort to get children to collaborate than to do the tasks themselves.”