You can pick your friends, but you can't choose your family, and maybe that's the greatest thing about having siblings. Whether you love them or not, they keep showing up at the dinner table and family functions. Having a sister, brother, or both forces a child to deal with peers on a daily basis. Sure, backseat wars have been waged and sibling rivalry exists, but the bonds that are formed wrestling each other over the television remote or laughing till your bellies ache are ones you can't replicate. As the second child of four who will soon give birth to my third baby, I believe that the greatest gift you can give your kid is another one — check out all my completely biased reasons why!