The silliest thing about the "children are natural scientists" line (which is common amongst scientists for whatever reason) is it actually underemphasizes how hard it is to be a scientist, and how many millennia it took before we really had "science" in the modern sense.
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But the general point is, there's a reason it tends to take around 10 years of education for someone to be able to really contribute novel, reliable knowledge (in ANY field). Because it's not at all a basic part of human nature to do that — it's a product of education.
I think that people who have been experts for so long (in whatever field) tend to forget how much work was involved in all of those years, and tend to see their way of seeing the world as more "normal" and "natural" than it really is. But it's the product of a long process.
