What Are the Objections to Early Childhood Education?

There was a lot of controversy over some of this early childhood education. I think Sanger does the best job in part two of his book called, what are the objections to this to this area. And he has the objections are yes it is possible and that there's no need to be defensive about what you have or haven't done. The interesting kind of objections to it seemed to have, to this aspect of education. But one of the big ones is the pressure objection - why are you pressuring your child to learn?