I guess I would say the high level functions of public key cryptography aren't that hard to grasp. Things like "hey either one of these keys can encrypt something the other one can decrypt and vise versa" is pretty straightforward. I don't think we have to teach the math involved if that's what you're implying.
Protecting the secrets words for a crypto wallet is pretty much the same thing as protecting the strong password for a password manager. If you lose that, then you're out of luck, and those are very popular.
You could also delegate trust in several places in the chain to trusted third parties if you feel the need, that could re-enable access, or shift assets into a new wallet.
Odd. I would only assume people kept possessions they made (tools, weapons, trinkets, etc.) prior to any formal states existing (or pooled them voluntarily). But, then, you get into _de facto_ states and what that potentially means.
Private property requires that a private individual stake a claim to it. Private property is mutually exclusive of a state. The state [typically] is the primary violator of private property by enforcement of some shared mode.
I could get on board with the rest of your list, but this struck me as odd to include. Can you elaborate how it fits into that list?