Yes the should fear cause crypto currencies or digital currencies that we know of don't need banks, we can save them without their help. And it evolves to break the back bone of bank which is a centralized mone managment system. But btc and other cryptos decntralize system it works independently. Like know one can trace it down who is having how much money is being protected in a certain way like there is no way. And investments on bank will go low affirmatively as people are investing money in cryptos somw may be taking lone and investing in btc and enjoying the profit. Its a threat for bank for sure.so fears are expected .