There are so many things that have change and will change because of adoption, China is one example, another one is Facebook we all know that these starts as against Cryptocurrency, but now they are creating their own coin, because they have seen the opportunity behind these technologies, and they want to take this opportunities.
some countries see bitcoin from the technology behind it, so maybe they would prefer to adopt it themselves. if many countries adopt blockchain technology, the development of digital currency will develop a lot, and may have a positive impact on crypto, even though competition will be more numerous