The world can go to crypto but it will take a while. I do not think it can be soon because not all countries have heard about crypto nor blockchain. It will take much effort to achieve this.
I think so. It is subjective for every country to accept it because banks has already the trust and it has a big role to the environment of a certain country. If it has to removed and will be replaced by crypto, it has to reset everything in terms of financing and saving money