You must of read my mind. I was thinking about you and thought you might like an article I recently found on Atlantic Monthly. That article turned into several articles, so I am posting the links to both the article and their search site so you can find others. Hope you enjoy.
I think this one validates your intuition is spot on.
more here
https://www.theatlantic.com/search/?q=Parenting+%2B+playgrounds
