Middle Child Day gives a little recognition to the unique middle child in the family. For au pairs and host parents of three children, you likely know the “Middle Child Syndrome” all too well. If you grew up the middle child with both older and younger siblings, you know the feeling from a very personal perspective. It has been suggested that the middle child tends to be more introverted, quieter, perhaps a bit of a loner.  Make today special for the middle child in your life.