It really depends on the child. I have a 4 year old daughter who is in pre-k, that is operating on a 3rd grade level. She's severly autistic, and is in the special ed program. She's going for social skills and speech therapy. I would love to put her in kindergarten next year, as she will turn 5 days after school starts. With her behavior, and social problems, I'm not sure that will be possible. I'm actually having to consider home-schooling her next year if she doesn't start improving soon. Kindergarten is mostly about basic social skills, and for the kids to really master the "school" skills. Listening to the teacher, raising their hand to speak, following directions, etc. Have you looked into Head Start or tried getting some information about the Pre-K programs around your area? That's really the best place to start. You can't always tell right now if your child will be ready in 2 years, or not. Wait and see.