Bill Gates explained that he thinks cryptocurrency is really bad because it aids and abets people who want to keep their financial transactions hidden from the government.
For me Bill gates is quite right but crypto is not bad, i think the bad is the person who used crypto intentionally in illegal or in not good situation. They used crypto as tool for hide their true intention, like they can used it when do some illegal transactions or those who have lots of money they put their money in crypto just not to pay taxes. So its means someone is the reason why crypto have bad idea to others, we are the ones who have fault not crypto.