The conviction that the best way to prepare children for a harsh, rapidly changing world is to introduce formal instruction at anearly age is wrong. There is simply no evidence to support it, and considerable evidence against it. Starting children early academically has not worked in the past and is not working now.
Images of the Young Child: Collected Essays on Development and Education (ed. National Assn for the Education, 1993) - ISBN: 9780935989588