Bitcoin banking is more secure than normal banking, because you are the only one that has access to your personal wallet but in normal banking customer cares can login into your bank account without you're notice and use your money for any kind of businesses.bitcoin banking is more reliable than normal banking because money that is in your normal banking can be deducted or withdrawal without you're notice but that can not happen in Bitcoin banking everything happens with your authorization.
Its true that the technical team or the customer care of the bank can have access to your account if the know the password. We have had issues where bank staff fraudulently transfer or steal customers funds. Sometimes banks carryout some illegal deductions from people's account without permission. But we should not assume that Bitcoin transactions are totally protected. You must ensure you use decentralized wallets and also make sure you keep your passwords and keys safe. Someone having access to your password or keys might be quite disastrous than the pitfalls of conventional banks. Your entire funds can be stolen in few seconds if your security is compromised.
Also, in most countries where Bitcoin transactions is restricted, you still need these commercial banking services to carryout financial transactions.