In my country here many people has stopped depositing money in the bank since last year because of corona virus lockdown that occurred within two months interval, I can see that the trust humans have with banking system of government has been depreciated, because instead of money kept in the money yield interest after been with bank some months the money have to depreciate due to their banking charges, so putting money in back is not helpful and humans has see a means or device that will yield positively to their money which is bitcoin investment, and I believe centralising system of money banking is no longer comfortable to people.
The problem banks have is that you lose your trust to them but you do not lose your money to them, there are still countless amount of money in banks that has no other option at all. Normally let's assume you are a business that deals with hundreds of thousands of dollars, there are so many of them, you need a loan in hundreds of thousands, there are a lot of them too and think about all those people who are way above that, people who deal with millions of dollars and even billions.
When you imagine those people, can you imagine them working with cash? That is impossible, they can't use cash and that means you have to basically just use a bank in order to carry that in a small tiny card, otherwise you would need to carry your money in a whole luggage or even few of them just to walk around, which is impossible. So poor people can remove their money from banks, but as long as huge corporations keep working with them, there won't be any problems for them.