During early childhood, social development plays a crucial role in shaping a child's interactions and relationships. Psychologist Erik Erikson proposed a theory of psychosocial development that includes various stages, each characterized by specific conflicts. One of these stages occurs during the preschool years, where children face the conflict of initiative versus guilt. This period is significant as it influences how children begin to assert themselves socially and develop a sense of leadership and purpose. What is the primary outcome of successfully navigating this stage according to Erikson's theory?