In the current situation I think paper money will not disappear. There are many things to consider and in reality it's not easy to be used this online currency. Because others can't adopt easily this online currency and paper money is still the original use even in the future.
Yes, I agree with you mate. I think it will never disappear in the future or will be eliminated. Adoption and education about crypto for all people in a certain country should be the first thing to consider. And it will be a headache to the government side if paper money will be no longer of use. I think its good to have both, as we have options for easy and fast transactions.