The first time I came into contact with BTC, I felt that there was little difference between e-payment and BTC. However, with the gradual understanding, e-payment and BTC are becoming more and more different.
In essence, electronic payment is the circulation of legal currency in one or some countries, while BTC is the circulation all over the world（ If every country agrees)
The good thing is, at first the government were against cryptocurrency or bitcoin in general because it's a fraud and they are thinking that this assets are commonly used for illegal crimes such as money laundering, terrorism etc. But, once they know the great thing about cryptocurrency and the system behind it. They are starting to use it In essence, electronic payment is the circulation of legal currency in one or some countries, while BTC is the circulation all over the world（ If every country agrees)
, so many countries have been experienced this shit.