Notification to remind user of backup

I thought of integrating a backup screen into the create key wizard to force the user of creating a backup of the newly generated private key. This way users can revoke their keys later if it got compromised. We could also generate a revocation certificate, but I think this is less usable, because users might not understand what this is exactly and how it can be used later.

On a second thought, it could make the wizard too long and annoying, so what about reminding the user via a notification after lets say 14 days to create a backup of their newly created key?