A parent's worst nightmare is that their child might be hurt. However, being protective of one's child might cause him or her more harm than good. A "cotton wool culture" is protecting children from risk and failure, and preventing them from learning how to overcome setbacks. Risk and failure are opposite sides of the coin of success and achievement. If we want achievement then we might occasionally fall down. Children shouldn't believe life is always easy and that things don't go wrong. Those things do happen in real life. You fail, you strive, you try again. Young people need to take risks. If we avoid risk, if we wrap children in cotton wool, we will have a problem.