Kids should start school at age 6 according to most research. Starting at age 6 allows children's brains and social skills to develop more before taking on the demands of formal schooling. It makes the transition from preschool to elementary school easier for both students and teachers. Additionally, children who start school at age 6 tend to have higher self-esteem and confidence, which helps them make friends and fully participate in school activities. While every child develops at their own pace, age 6 in general provides enough time for children to grow and be ready for the challenges of school.