Hart Cain of New Philadelphia, Ohio, pictured abov...  ...to feed the disadvantaged. Read about nine more kid innovators here.Image: man-cans.com

Image ViaSometimes, we underestimate kids . We see them as kind of useless (sorry kids ), as if children just want to play games and have...  ...of the joys of being a child. But what about the kids who are changing the world? What about the kids...