Playgrounds are evident from the earliest times of structured settlements. The concept of how they can be of benefit to children has developed gradually; and have usually been controlled by ‘grown ups’ not children.
Next time you visit Berlin be sure to visit Bogensee near Wandlitz. Here you will find a playground in need of replacement. 
As we all know, our Cluster is working toward developing the program of disassembling high - quality playgrounds, and shipping each to a new home overseas. In recent times, RCME among others in Steve Daley’s Cluster (so to speak 😂)