Also, the markets will not simply disappear just because of volatility. If you at least did a slight bit of research, you would almost automatically know that the cryptocurrency market is heavily volatile. This is something that shouldn't be realized later on. Yes, the prices do rise and drop very fast; but some people do take advantage of this volatility to make money.
Even though it's debatable if bitcoin will rise or crash in the future, markets simply don't "disappear". Markets rise and crash. Even if bitcoin does a nosedive to double or triple digits the markets will still be there, as some people are definitely willing to pay significantly low prices.