on this topic
well Ive been observing a lot of family dynamics in primary schools. the middle years are often problematic as theres a lot of growing pains and stages to go through before becoming mature.
When I read childrens books, middle children are often absent in family stories, which often concentrate on an orphaned child making their own way in the world. Harry Potter anyone?
or its about twins, or just two siblings.
However...the popular series Diary of a Wimpy Kid features a middle child. Greg is the middle child of three. His older brother is quite the bully and his younger brother too young and cute to be blamed for anything. Im not sure I like the character of Greg much a he's a boy in a family of just brothers but I can definitely relate to being the middle!!