I love the continuous improvements to Keychain in its various forms.
Their friend or the person who onboarded them can then scan the QR Code and pay for their account creation with either HIVE or an account creation ticket.
Will payment for the account with Lightning be possible with V4V.App, maybe, as a future collaboration to help with this? Brian mentioned he created the possibility of creating Hive accounts for Lightning via V4V.app already.