Neither bitcoin nor paper money has any real value, but notes have national credit support, and what if bitcoin also gets national credit? The government will lose its macro-control policy but it can also effectively eliminate inflation, two relative ratios. Is that a good result? Of course, I know that the government is very unlikely to support bitcoin, but who knows?
If governments would do that, then that would really give cryptocurrencies a big push to be known and be embraced not only locally but globally. As governments, they are big entities that many people trust and listen to when it comes to suggesting how people should look at and appreciate a business scheme or, at least, use them as guide on how they see one asset. Remember, in the previous years, many central banks, basically the business and commerce arm of every government unit, have mixed views on how people go on with their cryptocurrency investments. Those recommendations have truly been a mover on how people have trusted and accepted cryptocurrencies. These days, as more and more countries are accepting it, it's beginning to give cryptocurrencies a positive image that people tend to accept even more so now, than before.