In this specific technology case. 1. I think a single "password/key" as access to your entire life is an absolutely terrible idea. 2. for the majority of people that means your entire life on someone else's servers (which, yes, is how things are now, and it's bad) I don't think you should have enough, or really anything to lose on someone else's servers or even on your own phone. 

Technology is going to move forward with or without me, that's not lost on me, but I think there are simply some problems that should not be solved with technology, so I guess I'm arguing for caution?