I don't think the encrypt industry is dangerous. It is risky to know that you invest in any industry, and the benefit of investment encrypt relative to other investment is very big. What we need to do is to control your own risk as much as possible.
I don't think its right to call crypto industry is dangerous, It cannot be dangerous if we will study first all about crypto and before we engage into it, we better make sure that we know what we are doing to be safe. It is risky doing transactions here, but not dangerous.