I met Amelia as a two-year-old. Like many young children experiencing their first days of school, she didn't talk to me. Feeling shy is a common, and completely rational, reaction to new people and environments. It wasn't just me. As long as she was in the classroom, she didn't talk to anyone, including her own parents. Again, not a problem. She talked at home, in the car on the way to school, and in other places, but her lips were sealed once she crossed our threshold. We're a cooperative…