A playful mindset is key to finding creative, resourceful ways of doing the things we need to do in life. And yet, in the past 50 years there has been a steep decline of free self-directed play both in and out of school. "In providing more structured activities outside of school, longer school days and more rigorous curricula, we have raised children who are less prepared for a successful adulthood," Stephanie writes. But there is hope! In...