This essay delves into the realm of psychosocial development, specifically focusing on the crucial early childhood stage, spanning from 2 to 5 years of age. It uses a case study of a child named Julie, who is facing challenges with toilet training, to illustrate key concepts. The essay begins by defining psychosocial development as the evolution of a child's socialization, encompassing cognitive, emotional, and social growth. It then explores Erikson's theory of psychosocial development, particularly the autonomy vs. shame and doubt stage relevant to Julie's age. The role of parenting, peer interaction, and childcare socialization is also examined, highlighting the importance of parental support and guidance in fostering a child's emotional and social competencies. Furthermore, the essay identifies factors influencing psychosocial development, such as parent-child interactions and stress, and concludes by emphasizing the relevance of understanding childhood development for nursing and midwifery practices, highlighting its impact on identifying potential developmental disorders and improving healthcare quality. The essay references peer-reviewed journal articles to support its arguments.