Real secure encryption is and always will be not user friendly because it means only you can know the private key. This means no "Forgot my password" functionalities, no fancy powerful cloud AI analyzing your data and suggesting cool stuff, no free hosted full text search of your data, no open directory of friends to search on etc. So basically, no gmail, icloud, facebook, dropbox etc. It would require a complete new paradigm, sure there are interesting techs such as ethereum and bitcoin but they are not user friendly, and don't scale much to the regular user (downloading the whole blockchain is a no-no to most people for example) but most importantly, current solutions are too convenient and work really well (bar privacy and security issues most don't care about). So you'd need a tech that not only is way better, more efficient and smarter than current ones (gmail, google, facebook, icloud etc) but also secure and decentralized. Not happening any time soon but hopefully not impossible either.
Because I have no interest in memorizing keys, I store them on disk protected by a passphrase. I don't know if this counts as "Real secure encryption" but it's sure a lot more secure than more typical use of email.
You can store it on disk protected by a passphrase but that's still not user friendly as way too few people would be willing to or capable of doing so which was my main point. My point is that secure encryption is by definition impractical, inconvenient and not user friendly which makes its adoption by mainstream users very unlikely at least in the foreseeable future.
