if i build a bank of bitcoin that operating like a traditional fiat money bank when people can save the money and get interest for their saving and also people can get a loan from my bank but the fiat money is change for bitcoin, the question is would you guys trust me to save your bitcoin on my bitcoin bank that i want to build ?
I think I would if even if the price of bitcoin change, I would still get the same amount of bitcoin in fiat if the time comes that I want to get my fiat back, of course with the percentage of my earnings along with it. But I think it is gonna be complicated to create a bank that is made for cryptocurrencies.
in essence, every bitcoiner has his own wallet, so they like having a bank for themselves. but indeed we ourselves must guard the security of our wallets from hackers