One of my friends on Facebook shared this article the other day about why her three person family works. She's got some really good points, and one that sticks out to me is the whole competition thing among siblings. My two are highly competitive against one another, and it doesn't matter how impartial I am. It's almost like they're wired to act like this with each other.
http://www.huffingtonpost.com/wendy-widom/only-child_b_1834695.html [2]
