In my opinion, i think the banks can offer interest bearing crypto accounts, others ways. Your thoughts
First, this is not going to be possible. It can only be possible if the banks create their own cryptocrypto or have partnership with any of the shitcoin project, which they might not take the risk as well. Bitcoin should never be put to this kind of process because that's not why it was designed. If you want to make profit from your crypto, buy low and sell high, but if you want to make profit from Bitcoin buy and hold.