Hey.
Yesterday I read an article about banks that began to use blockchain and there was pretty impressive list.
They're also described successful cases of using blockchain in banks (if you're interested -
here's the article), so I may assume that using blockchain in bank's system is only a matter of time (and money, of course).
Now, the question: why it takes THAT long the smaller banks to go the same way and start using the blockchain?
I think this is due to the fears and indecision of many banks, because blockchain is a new technology, it needs to be implemented in an already functioning system, and these are new costs and risks for the bank. Therefore, many banks do not want to expose themselves to unnecessary costs while everything is working fine for them, so when innovators in the banking system fully implement blockchain and cryptocurrencies in their own structures and begin to move away from old banks, then they will start to move.