I have to say, that I have been around a lot of teenagers over the past several decades and mine are much easier to deal with than many I have seen or experienced. That being said, I believe nature knew what she was doing with the human growth cycle. When our children are tiny and young we hold them close as can be. As they get older, the time of puberty and teen years makes everything awkward for them, that they want to leave the nest, and we want them to leave as well!