There is no evidence that spans an entire society because most societies have higher education. And the ones that dont — let’s just say that they are probably the most “creativity” humans on the planet (in terms of their survival) but because they don’t have paved roads and prioritize their lives around money, we do not consider their form of creativity exceptional.

And, it is the schools that kill creativity — not growing up. Because it if was the latter, then people like Mark Zuckerberg would have not needed to drop out of Harvard.