> Even today using PGP Email is not something I would trust the average computer user to pull off and pull it off safely

I'd argue it is not that complicated once you take the time to explain how it works.

If I have to explain it, it's already a lost cause. If you want any hope of PGP being widespread, or any cryptosystem for that matter, you need to have it being self-explanatory.

Someone at the age of 90 should be able to download the software, click a "yes" button and secure their mail.

Secure E-Mail must be as DAU-proof as possible.