Once upon a time they were saying that the smartphones were not useful and too big to carry in our pockets. Now everyone has a smartphone and even there are billions of smartphones around the world. Cyrpto-currencies have a long way to run and will bring us more innovations.
you are right, everything new causes fear and mistrust. and only time is needed to make this an ordinary thing. and in the future we will talk about how we lived without it. unfortunately the author of this topic can not be enough patience)