Do people think about this and have plans to work around these kinds of banking barriers? Or are there ways around it already but I'm not aware?
Yes, the banking barriers have been happening before and people thought about the banking barriers but that's one of the reason why P2P exchange come to play the role of saviour.
If you study the rate of adoption of bitcoin you will understand it is not realistic that bitcoin will be banned globally. Five years ago, I hear the same news about bitcoin being banned but here we are today it is being discussed. The government will always fear something they do not have control over but it is seem they are coming to reality to think about the positive aspect of bitcoin rather than the negative side especially during the pandemic.
Aside the global adoption of Bitcoin, Bitcoin potential outshine the power of every government on earth and I could remember the Chain analysis advising the government that they can totally ban Bitcoin but learn what it truly was, Which is also what the IMF boss advised them to integrated virtual currency because they are future of payment.
Having said that, I don't think anyone should be worry about converting BTC to fiat when we have P2P exchange.