Observations and interviews of 20 middle-class 3- and 4-year-olds and their mothers were conducted to examine the emergence of the personal domain. Interviews with children showed that 3- and 4-year-olds make a conceptual distinction between personal, and moral or conventional issues. Interviews with mothers indicated that they viewed it as important for young children to have freedom of choice over personal issues to develop a sense of autonomy and individuality. Observations in the home revealed that mothers tended to give direct social messages to children about moral, conventional, and prudential events, and were more likely to give indirect social messages in the form of offered choices to children in response to personal issues. Mothers were more likely to negotiate with children over personal than other social events. These data revealed a pattern of social interactions concordant with event domain, which included a reciprocal system along the border between the personal and the conventional.