Just yesterday there was a thread here, where a random user was added as admin for multiple accounts for GCP accidentally, and he couldn't talk to a human on Google to get it resolved. He was neither actively looking out for nor was not anything other than the average user. OP is correct PGP, is a hassle, and needs explicit knowledge to use it correctly. Keybase somewhat solved it then got unpopular, but thinking about it again even Keybase never went mainstream.