Not everyone knows what a digital key is, let alone the private and public keywords. To most, seeing a train of nonsense alphanumeric is terrifying. Nostr app developers can start calling the two keys something like “login key” and “user address” to help everyone understand what they are used for.
Discussion
Bitcoin calls them address, or wallet address, when in fact it's a public key derived from a private key. I had no idea until a few years back. You have a good point.
I still don’t know what is what! So in my opinion have a conference somewhere in USA or nearby with speakers who can teach people about this app nostr:npub1sg6plzptd64u62a878hep2kev88swjh3tw00gjsfl8f237lmu63q0uf63m
I store my keys in a password vault.
Username= npub
Password = nsec
Makes more sense that way.