According to my fiancee, Her oldest child
did not know how to breast feed. The
knowledge had to be learned.

Most babes understands simple ideas
very well. A few do not. How a babe is
wired will affect how they put the ideas
together and interpret them. I will make a
broad generalization and say that
someone who is more prone to anger will
stop listening to something that is a
painful, or challenging truth. Being prone
to anger is a trait that is traceable in many
instances to early infancy.