“Daddy, I wanna go to Japan” “You do? I love Japan! Why do you wanna go to Japan?” “I wanna ride the in-kam-sen” “The shinkansen?” I asked. I figured he was repeating something he saw on YouTube. “You mean the bullet train?” “Yeah, the shim-kanren. I wanna see that one.” At age 3, my oldest was already obsessed with trains. He collected every train toy, and screamed in joy every time he saw a train pass by on the street. If we didn’t take the tr…