My 3rd boy just turned 20mths on 28th sept. I have sent him to a half day childcare wen he was 18th month. It is a good exposure for him to mix around with other children of his age or older or younger then him.Eversince i sent him there, he seems more approachable to ppl outside n he is more friendly now. And he learns to speaker faster wen he is at school coz monkey see monkey do mah. At this age, what i feel is they are absorbing alot in what they learn n see that is y i sent him to childcare to learn more wen he is at this curious stage. you can ask the school if you can let him have a trial for a few mths n you decide frm there. what we can teach at home might not b enough compare with those experienced teachers n the materials they have.