Children who know what they can and cannot do, who do not have to constantly argue about rules and controls, who are not worried about their parents’ expectations for future success always hanging over their heads, are released from many of the attentional demands that more chaotic households generate. They are free to develop interests in activities that will expand their selves. In less well-ordered families a great deal of energy is expended in constant negotiations and strife, and in the children’s attempts to protect their fragile selves from being overwhelmed by other people’s goals.