It is not actually always true that many Crypto-Holders gets rich and earn lots of money. It depends really depends on how good are you in investing with your coins and your patience in investing and holding. If you are good at those there is a high possibility that you can be rich with cryptocurrency but also there are many inexperienced people who are investing with crypto which can make them lose more money than earning which is a common mistake with newbies. It can take time in earning with crypto but if you are eager to learn and get the knowledge then there is a chance.