Blockchain and Cryptocurrencies go hand in hand, there is no way to develop one and discard the other, all you need to do is read the news and you would see the recognition that blockchain is getting and in extension Cryptocurrencies, It is definitely here to stay.
battle anyway, even at the summit of the big twenty leading leaders of the countries recognized the importance of the block chain for humanity in the present world. I think that this has a positive effect on the use of this technology.