Haha, this is too funny. I have an iPhone 5s that I encrypted years ago with a password that I have unfortunately forgotten. Had to start from scratch with my iPhone 6s, because of this. I stopped updating the 5s, hoping that one day there will be an exploit that makes it possible to break in and pull the data. Who would have thought that instead I will be happily upgrading to iOS 11, because apple made it a feature.
I know this is bad, but for me it is awesome right now.