You Are Going to Want to Send Your Kids to This Kindergarten

"There is no acoustic barrier at all," Tezuka said. "When you put many children in a quiet box, some of them get really nervous. But in this kindergarten, there is no reason they get nervous. Because there is no boundary. And the principal says if the boy in the corner doesn't want to stay in the room, we let him go. . . . Here, they leave and come back. It's a natural process."