Coming legal legit.
So what's the next step once the cryptocurrency is legal?
First of all it will not be everywhere, because we all know that not all countries are friendly to cryptocurrencies. Another one important point - what to do or what you will be able to do with crypto, everything will depend on the concrete country and its laws and regulations, it will depend on what you will be allowed or not allowed to do. So it is a very wide question, and answers will very individual.
The number 1 enemy of bitcoin is that others are still not believing on its existence in the market.
There are still countries who are banning it and thinking that bitcoin doesn't have any value and it is only a tool for scammers to fool people.
Regulation will really be the next problem once countries adopted cryptocurrencies in their market. Not all of them are knowledgeable and willing to invest on it so that's also a problem.