It seems to me that the crypto-currencies have already changed the world! And this will only continue!
Of course, crypto currency will not be able to completely replace money, it is expected. But the importance of crypto currency will always grow.
Yes somehow, this crypto currencies affect the system and partly chancege the world. Because some people has it's own opinions when it comes to crypto that some had really believe on it. Although this crypto has been the big impact on each lives because they can earned income yet when facing the fact that fiat money cannot be replace.
Simply the main problem is that there are older generations that are not ready to learn and develop. A crypto currency for them is a terrible and incomprehensible words. This is very messy, but there are many such people. And while crypto-currencies are being introduced into the world, people will start to dive more and get acquainted with the information. This also takes time, unfortunately.
I agree with you. Older people accept new things not so fast. The impact of cryptocurrencies is growing. This is an inevitable trend.