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 ?
There is no way you can make any money without fractional reserve system. Simply it means you can play with more btc than in your possesion. Bitcoin by design is tobuild to fight and win with this broken system so my answer is: why would i trust you if i can be bank myself?