The optimal age to start preschool depends on the child’s individual development and circumstances. Research suggests that children benefit from a high-quality preschool experience that aligns with their developmental stage. Considerations include the child’s social, cognitive, and emotional readiness, as well as the quality and availability of preschool programs in the area. Parents and educators should collaborate to determine the most appropriate time for each child to start preschool, ensuring a positive and enriching learning experience.