Young children often have imaginary friends. Sometimes they're human, other times they're animals, like the life-size rabbit in the old Jimmy Stewart movie, "Harvey." Sometimes the imaginary friend is an occasional visitor, stopping by only once every few days. But other times it may be a child's constant companion. Children may talk to their imaginary friends, draw with them, or even read books to them. And plenty of parents have had to set an extra place at the dinner table for the "friend." So are children's imaginary playmates causes for concern? In most cases, the answer is No. Imaginary friends are a pretty normal part of growing up-especially during the toddler years-and they serve several important functions:

• They can be wonderful companions for pretend play, which is an important way to stimulate creativity and imagination. Having an invisible friend can make those long trips to the moon or back in time a little less lonely.
• They can act as a child's trusted confidant when there's no one else to tell their secrets to. Even small children have issues that are too private to tell us.
• They can help kids figure out the difference between right and wrong. Kids sometimes have a tough time stopping themselves from doing things they know are wrong. Blaming the imaginary friend for eating cookies before dinner is often a sign that the child understands right vs. wrong distinctions but isn't quite ready to assume complete responsibility for her actions.
• They can give you some valuable insights into your child's feelings. Listening to your child bravely comfort an invisible friend who's about to get a shot may be a clue that your child is more afraid than she's letting on.