I think crypto is really for all but the the market is for the smartest. The market is not stable making it difficult to predict therefore before taking any decision there is the need for you to know its merit and demerit. If you are a "coward" you might not be able to make some decision that might turn things around for you.
This is for everyone who are willing to learn and earn in this technology. We just need to know at what level of risk shall we can afford. I agree that smart people has advantage in this technology.