Well it is not far from reality, though there are countries who against but I do believe that their mind will changes. There's also some countries who legalize the usage of crypto and I think sooner or later the other will do the same.
Actually, in other place there are few people are now accepting this cryptocurrency as mode of payment and even there's few online store who also accept this currency. Hence, in my speculation sooner or later it will be now legal to use in any kind of transaction.