This isn't a good comparison. I have no reason to trust Coinbase and my options for recourse are minimal if they end up being shitty. My bank is an institution with capital assets in my city. I know where they are. They have an address and it's local. I can talk to a manager, face to face, if there is a problem. (And have.)
(And my bank has a better security record than Bitcoin companies have thus far shown, besides.)