A grade school teacher had 26 students in her class. She presented each child in her classroom the half of a well-known proverb and asked them to come up with the remainder of the proverb. It's hard to believe these were actually done by first graders.
It's very important to educate your children about certain subjects. Otherwise, they might get confused, and make their own assumptions about how things work... And the way they think things work may surprise you!