Being able to start kindergarten early is something that varies from location to location, so you will need to check with your school system to see if that is an option. It is important to look at readiness in terms of social, emotional, academic, and physical readiness.Along with determining readiness at a young age, parents should also consider future years as that child will always be younger than their peers. That might not have a major impact in elementary school, but it could once puberty hits.