Yep. 

Banks are effectively private credit systems with two huge advantages - they are using a nationally-mandated unit of account (e.g., dollar) and are guaranteed a 1:1 exchange rate with public money, no matter how crappy their balance sheet is. 

With Bitcoin, the unit of account is sats (no need for a nationally-mandated unit of account), and ‘cash’ or credit (ecash) has no choice but to trade at par because of the almost perfect liquidity.

In this new system, anyone can be a ‘bank’.