Yeah, some banks won't make it to the finish line. But still, email may have affected the post industry to a degree, though the telephone did the same or even more than that long before it. Neither killed this industry. We still have to use the post services to receive orders from online shops or whatever. Cryptocurrencies will compete with the banking industry, but personally, I don't think they will kill it just like Visa and Mastercard didn't kill it either. Loans in crypto are not very popular and widespread given the present levels of volatility, and that's unlikely to change in the near future. Thus, banks will stick around for some time.