Many people think it is taboo to talk about sex with children. Adults reinforce this belief when, for example, they use substitute words rather than "vagina" or "penis". They may be embarrassed to learn about children's sexual development or ask others for assistance. Although most people in US society are open about sexuality now, the topic of…

At the same time young babies are developing an understanding of self as separate from others--what it means to be "me"--many also face having to negotiate living, learning, growing, and developing as part of a group--what it means to be "we". This is true for more than half of all infants in the United States under the age of…