There is no definitive answer to this question. It depends on the child's readiness and ability to handle the academic and social demands of kindergarten. For most children, 7 is generally too old to start kindergarten, but there are exceptions. Some kids who are younger than 7 may be ready for kindergarten, while others who are older than 7 may not be ready. Ultimately, it is up to the parents or guardians to decide whether their child is ready for kindergarten.