Give this man a merit! Definitely put out the exact words that I'd be putting right there, banks won't be extinct, but will be adapting cryptocurrency as something that both the crypto and the bank will be benefiting a lot, and I think you constructed the post as simple as possible, something that would attract the reader and will convince him/her to continue and finish reading the whole statement.
The bank won't die, that's for sure. At any time the bank will become a financial sector operator for a country. When cryptocurrency emerged and became a payment instrument throughout the world, banks continued to play an important role, because the government had an interest in the bank which was a source of income tax and information about the amount of money in circulation.