The term "preschool children" refers to young kids who are between the ages of 2 and 5 years old. This age group is typically characterized by rapid physical, cognitive, and emotional development as they begin to explore their surroundings, learn new skills, and interact with others. Preschool education programs aim to provide a safe and nurturing environment for these young children to develop social skills, self-esteem, and readiness for formal schooling through play-based learning experiences.