They are always a priority and maybe the banks themselves try to suggest something based on their own interests.
It is always affiliated with money, generally those with large balances will get a more privileged place because that is how they are treated.
We hope that more banks will implement this even though if you look at it, it is not yet a priority that they will do for all their customers.

If banks start to affiliate with bitcoin for the implementation process, maybe the impact will be much better so that haters will no longer compare bitcoin with fiat currency itself.
This is just my personal thought and does not involve anything because I assume in the future we will see more institutions that will try to suggest investing in bitcoin.

The biggest bang of the current era is Bitcoin, which runs on block chain technology. So, in part, all these banks have accepted Bitcoin to meet the needs of Bitcoin customers and to keep up with the times. Because Bitcoin is gaining popularity day by day. So, if the banks can meet the needs of large BTC holders, meaning owners of a lot of money, the banks may have accepted Bitcoin thinking that it will also be profitable. Because rich people never invest their money in one place. They have different types of businesses.
So if they keep 7% of their money for a long time, it will not have any effect on their other businesses, on the other hand, they will be able to make a lot of profit in the long run. But I think they will rarely get such customers. Bitcoin decentralization is a method. No one will give the responsibility of their personal wallet to someone else. It can be given by those who understand less about technology or who are not knowledgeable about it.