The idea of our babies growing up is a tough enough concept for parents to accept, so to a preschooler? Well, it's simply incomprehensible. Case in point: Sadie, who is so taken with her younger brother that she's moved to tears over the idea of him no longer being a baby. And when we say tears, we mean tears! Watch and see for yourself. Don't you just want to give sweet Sadie a giant hug?