This is unnecessary, as this has blocked the blockchain. It will not be profitable but safer. I do not believe in a bank, because my government has issued a decree authorizing bankruptcy, and compensated the depositor for $ 3,000. Even if they send $ 1 billion
I think they might attract investors of this type by saying that their bitcoin will be safe in their hands. We know how banks do well in making money.
I like to deposit my fiat to the bank and they make money with it but if it's bitcoin. I don't think I will take advantage of this service but there is a possibility that it will come and they will target bitcoin investors / holders who don't really understand what bitcoin is, being your own bank.