If you add speed and spread to the public, then the future is cryptocurrency.
More likely, but for sure it takes time. And for me, even cryptocurrency will be widely spread to the public in the future, the traditional way will still not go away, it's still there. That's what I am thinking also in cryptocurrency, it's still like neutral, you can use it or not, you will gonna be decide on it.
Decentralization will still preserve because that's they started the idea behind Cryptocurrency. even though the intervention of the government will come, there will be still some people who create their version of it in the decentralization method. As of now, the decentralization exchanges have gained popularity because lots of holders are getting used to it now.