How did it come to be that we don't let children be children? They must be allowed to get dirty and learn to take risks and negotiate social relationships that might be complicated, unexpected, or unpredictable.
Play is not an incidental activity: it is seminal in the lives of children and the health of communities. Darell Hammond is a modern-day Johnny Appleseed out to plant the seeds of play within reach of every child in America.
Don't forget the main reason children should have plenty of playtime: it's fun! You should do everything you can to allow your children to play with their friends spontaneously and freely as often as possible.