This is a better way of saying it than 'complex', I agree.

You raise a good point about the analogues to digital-nativity, e.g., if you grow up w/ x then it's familiar to you and you don't have trouble with it, and in fact you'll hold onto it forever, even when you maybe shouldn't, as @SatsCats mentioned wrt his mom and the printer. Is btc within the realm of things that will work like that, and someone who's ten years old right now will find all of this intuitive?

I'm suspicious of this. As mentioned in another comment, if we think of theories of money rolling up at least two key aspects (credit, commodity) then we can see how deeply ingrained these things are in the human brain -- we have hardware dedicated to solving social coordination issues (credit) and we have hardware dedicated to thinking and reasoning about objects and the possession of them (commodity). Even though money is a symbolic construct, it has underpinnings that the earliest homo sapiens would feel in their flesh and bones.

It's an open question to me if btc can feel real in that way. But maybe it doesn't need to feel equivalently real? Obviously people work in these abstract worlds all the time and it doesn't feel like a big deal. Is money different somehow, though? I still don't know.