They learn from their failures.
They must have complete permission to try
and discover that they are still OK."
I used to be terrified of failure as a kid, so much so that I was afraid to try anything new! I somehow got the message that I needed to be perfect, and if I wasn't perfect I was a failure. This is actually a common belief, and one that is detrimental to teach children! Failure is not to be feared, because without failure we can't learn anything about ourselves. Let your children make small mistakes now, so that they learn that mistakes have consequences and might remember that before they make a big mistake later. Let them try something difficult, and fail, and learn that it's OK to mess up and that if you practice and are determined you will eventually succeed.