I doubt I could persuade my friends and family to change email clients if there was a decent email client that provided encryption. They're just not that concer

I doubt I could persuade my friends and family to change email clients if there was a decent email client that provided encryption. They're just not that concerned about the government being able to read their mail and would probably be more worried that I was - as it would be seen - becoming paranoid. Nothing that requires your average user to open a command prompt seems likely to be used outside of the most security conscious of circles.