In future if bitcoin is allowed in countries around the world and most online based companies will start to allow bitcoin as their payment currency/gateway/exchange. But what do you think if we would be allowed to transfer our money to our bitcoin wallet from our bank accounts like PayPal does? Will it be a good thing for banks and us?
With Bitcoin, we don't need banks. Nowadays i understand the need for a bank to convert Bitcoin into fiat. But in the near future the idea is develop the "gateways" for Bitcoin until fiat is no longer needed.