@Em0nM4stodon everyone has "something to hide":

Financial problems, illnesses, ridiculed hobbies, sexual preferences, the extent of their nicotine habit… and most importantly: other people's secrets.

It's not just about protecting your or my communications, it's that my emails give insight into the lives of my family, my partners, my friends, into my work, etc etc.

John Doe don't just have to consider whether he wants his private life protected, he also has to consider Aunt Mary's marital problems, Uncle Jack's alcoholism, Cousin Peter's erectal dysfunction, Grandma Anne's cancer, Cousin Jenny's dates, and his employer's internal crises.

He has to protect all that not only against overeager cops with no regard for civil rights, but also against data leaks and hackers.

How anyone who isn't a cop can attack encryption in good faith is beyond me.