I've asked a lot of people about this, and none of them expected it to work the way it does. My parents could encrypt the stuff themselves using rclone or hash

I've asked a lot of people about this, and none of them expected it to work the way it does. My parents could encrypt the stuff themselves using rclone or hashbackup, but they have no idea how to do that. So they use Jungle Disk with client-side encryption (and decryption) instead.