Thanks for this insightful article! I am highly interested in educational topics as well and I also have a 3-year old sister, therefore reading about this approach was highly interesting!
When seeing toys for kids I so often think that it looks so unnatural and toxic and that I would never want kids to engage with it.
Also thanks for the great TED talk, I also consume about one talk per day!
If you are interested in my approach about education you can read a bit here: