I'm no financial expert by all means but if you think about this in a logical way, I don't think never in a million years that banking sector will ever go away, you got to understand that banking industry got a lot of powerful people on it's side and the money that's generated because of their support is so astounding and astronomical for any of us to even fathom that a threat to that industry is definitely not something that those who'd support it would let slide, why would Jamie Dimon and other banking executives that have a lot of money from the banking sector continues to berate bitcoin as a scam or something that's not worthy of their time and money? Because they see bitcoin as a threat to their jobs and with all the money and power that they've got, you're definitely going to try and do everything at your disposal to attack bitcoin and defend the survival of your obsolete and old industry that only benefits you.

He's so over exaggerated on his beliefs and maybe he fantasized unrealistic matter on bitcoin that's why he expect a lot more about it. But if he could just think about in natural way he would provable realize that its hard to erase the commercial sector since they are very well protected by the law. Also this institution cannot be eliminated easy but rather bitcoin can be eliminated by them since if these financial institutions will spread some black propaganda against bitcoin then for sure we might see bitcoin to be ban on our country. That's why I like bitcoin and fiat will co-exist together like each people working on both currencies will cooperate together since we can smoothly use bitcoin and can cash out immediately without getting any problem.

We often confidently declare that no one or any force can eliminate or wipe out bitcoin, but if we evaluate realistically, it can happen. If bitcoin can truly threaten and potentially wipe out the current banking system, I believe that governments will join hands to eliminate bitcoin. But bitcoin wasn't created for that purpose and it doesn't have the ability to do that, so it's not yet time for governments to join forces to destroy it.

Personally, I would also love to live in a world where bitcoin and fiat currencies coexist. After all, they both have their own tasks and use cases, there's no reason for them to oppose each other.

What kind of hero do you mean? Is it because the price is high? but only people who have money and buy Bitcoin can get the benefits so not everyone, so only the rich can own a lot of Bitcoin and get big profits when the price rises.

Not now, in fact I think not forever because there are traditional things that can be lost but there are also things that will last forever, and also because commercial banking or conventional banking is a system developed by the state so forever countries will maintain this because they can find out how much money its citizens have because that data can be obtained by the state without any problems.

I agree with op's general vibe. Bitcoin offered an alternative to traditional fiat and banking system, an alternative that gives a lot of freedom to users and works really well without any authorities and any monetary policies.
I'm truly happy that Bitcoin exists and that we can choose to use it when we want to do it. However, the banking system is just too big, and it also got very easy-to-use and generally convenient. What's more, if you don't use it, you face a lot of inconvenience. So while Bitcoin is a great thing, I don't think it will actually replace the traditional system. At least, not any time soon.

Not a write-off but BTC will always be their main competitor. Indirectly, the bank always tries to keep its customers on track, not move to other investment options. But, changes in behavior will certainly always exist, especially with the opportunities that are present now in the era of digitalization like today.

Well, for those who already know and know the great potential of BTC little by little the transition will occur where now we still see in traditional financial institutions a lot of costs incurred by customers, a small example I said if we lose the wallet at any time in which many securities following there is a bank ATM card then report to the bank to be blocked temporarily and after being found we report back will always be additional fees present following after Card blocking is re-enabled. troublesome of course.

Yes Bitcoin wasn't created as a competition or a medium to eradicate the existing banking scheme but to serve as a decentralised alternative for easier transactions and mode of payment and we all know that Satoshi's aim is gradually becoming a reality but then I believe if become generally adopted there's a tendency that it could be serve the purpose of being used as a general currency in the future though the possibility is not very high.

 But then the only obstacles against that is the government, the government needs a monetary system they could influence and since they can't influence Bitcoin it would be quit difficult for Bitcoin to erase the commercial banking system, except the government have no option but to accept it like El Salvador has done.

this has been answered so many times before and you can just dig this forum about the answers from those years, why need erasing when they can work together? let bitcoin be just an Eye opener to the banking owners and to the world that they cannot abuse their position in giving service to the people.

Bitcoins cannot erase the commercial banking system. This is because now a days people treat Bitcoins as completely a digital asset. Hence they are just holding it. If Bitcoins are used like currency, then it had chances to completely remove the banking system. Nevertheless how bitcoins are, people are really liking it. Initially the proposed work of Bitcoins were different, but now Bitcoins have become a precious digital asset only.