Calls who? Why should Granny trust you? What you described is no different, Granny is still outsourcing her trust to some 3rd party. Or are we working under th

Calls who? Why should Granny trust you? What you described is no different, Granny is still outsourcing her trust to some 3rd party. Or are we working under the assumption that every Granny has a grandson who is just as technically competent as you are? The fact of the matter is, PGP has just enough friction that if implemented correctly, will still lead to the vast majority of non-technical users simply signing up to some SaaS to handle it for them, and with that you end up in square one, where a handful of SaaS providers are the gatekeepers to everyones identity.