Recently certain schools have started mandating that every student wears a clear backpack so the school can see what's inside. Along with high fences and metal detector, it's as if schools are becoming more and more like prisons. I have friends who are teachers in the public school system and they will tell you first hand that it's like a prison. That's not just because of the food, either.
At first glance this just looks like a cartoon of a prison. Where's the fun in that? Then you notice the ball and think, "poor inmates. They lost their ball." The thing is, inmates don't play with colorful balls like that. That's a children's ball, which means that that's a school. The artist wants you to see the future of our schools. The only way to stop it is to start treating our kids like kids, not prisoners.