But in case of some children who are still dependent up to age of 3 years also. Such children need every opportunity to be around where other children play so that they can become accustomed to them, interested in them, and wean themselves from their dependence. But it takes little time. If you are in doubt about your child’s readiness for preschool, talk it over with a good preschool teacher. If the teacher is so warm and understanding that she quickly makes children feel secure.