I don't think that as an institution, banking system will be simply ignored by us. For sure we all love crypto no doubt about it and maybe some of us are not using any banks at all. But personally, I can't, I have to pay my house mortgages with check so obviously, I need banks to process it for me. And with that, it will be very difficult if not impossible to bypass every huge transaction without banks and fiat.
The banking system will be forced to transform into a different form. In the form that it is, it will be forced to change to the needs of users like OP. But at the moment, there are very few such users. What percentage of
BTC users compared to users of the traditional banking system? I'm guessing it's negligible. And I think that people will refuse banking services reluctantly and slowly. All the same, despite the shortcomings, there is convenience in this.
Of course, I would like to see more people like OP and more people switch to bitcoin, but it seems to me that the time for this phenomenon to be widespread has not yet come.
What happens is that once a system is put in place then changing it is very difficult, most people do not see the reason to abandon their fiat currencies, they know there is something wrong as they can feel the high inflation all over the world but they do not see an alternative so they keep using their fiat, however once things get bad enough then that is when people will begin to look for answers to their problems, and that is when we could see a massive adoption of bitcoin and we could reach a critical mass which eventually allow us to use bitcoin in almost every single business that we may like.