Youth sports are supposed to be fun. Unfortunately, and increasingly, that’s not always the case. Whether it’s 4-year-olds playing in competitive, organized leagues or parents throwing temper tantrums on the sidelines or behind the dugout, youth sports today are often made more intense than they should be. That’s the contention of “Just Let ’Em Play,” a new book co-authored by Kansas City sports psychologist Dr. Andrew Jacobs