In all cases where a state cryptocurrency is introduced as legal tender, separate currencies would be created that would be under state control. But Bitcoins were originally created precisely to avoid this! Such a state cryptocurrency would most likely NOT be as successful as Bitcoin, especially since the question arises as to who should operate the associated network and how the participants should be remunerated for this.
The second political aspect is to bring existing cryptocurrencies - and thus Bitcoin in particular - under state control. China and South Korea, for example, want to make trading in Bitcoin impossible by blocking all servers with cryptocurrency exchanges by the state. However, smaller direct transactions between private individuals are not to be regulated or prohibited there [22] . While belgium telegram screening bans on Bitcoin are even being discussed in China and South Korea, the US Securities and Exchange Commission (SEC) would rather regulate or prohibit exchange-based investment products based on Bitcoin exchange rates. The SEC justifies this with security problems. Switzerland is also already considering possible regulation [23] . ECB President Mario Draghi, on the other hand, made another interesting statement, namely that it is "actually not in our power" to regulate or prohibit cryptocurrencies [24] .
The boom in bitcoins and new technical ideas and possibilities have also triggered a boom in other cryptocurrencies. The website coinmarketcap.com already lists over 1,500 different ones in February 2018. Many of them can be described as "dubious" at best, but more than 500 of them have a market capitalization of over 1 million US dollars. In addition to Bitcoin, Ethereum and Ripple are currently the main focus of public attention.