The great family road trip with Mom and Dad: parents singing show tunes with the younger kids, the surly teen sitting in the back, eyes rolling, gum chewing, and music blasting into headphones to cancel out “family experience” around him. You know the scene – it’s in any classic 80’s family road trip movie. The modern version is similar but with everyone — save the driver — staring at devices. Mom is reading historical fiction on her Kindle, little sister is playing the latest Angry Birds …