Where was an article not too long ago on HN about the benefits of "unstructured play" and how we are creating much more stressed out and a lot less adjusted kid

Where was an article not too long ago on HN about the benefits of "unstructured play" and how we are creating much more stressed out and a lot less adjusted kids by denying them that historic social practice of just figuring out their social place within their social group, independent of the social position of their parents. Wish I had saved the link...