The various banks are afraid of the potential that Crypto brings. If people can instantly transfer money across the globe without involving a bank they stand to lose a lot of money in fees. This is only one of the reasons they dislike Crypto though.
in my opinion, the development of cryptocurrencies and the benefits of cryptocurrencies depend on the intentions and goals of the investors themselves, in my opinion, with a large risk, the results will be good and big as long as it can make good use of the investment we will do.