In my opinion, i think the banks can offer interest bearing crypto accounts, others ways. Your thoughts
Interest bearing crypto account is interesting.
Or bank can just replicate what a centralized exchange has been doing, offering various saving plan as well as flexible plan.
Actually, many thinks that CEX has been doing so far can be replicated easily by banks if they really want to keep up with the technology.
Even going as far as creating crypto payment gateway. Just make a seamless integration with crypto and they're already fine.