So when something revolutionary comes up that they simply cannot stop by any means it will frustrate governments. Some will learn to accept and embrace the future (Switzerland, Japan, Singapore), others will be neutral, while others will out right hate the innovation.
It seems as though the brighter and wealthier nations are embracing the change with open arms which is very encouraging. It is only a matter of time before all the walls are gone and bitcoin will be known as a global currency. One day soon
It is very easy for governments to control crypto, as we are seeing this past week.
BTC-e with servers in Russia - shut down by FBI. Poloniex - shut down by FBI.
All they need to do is take down the exchanges and cryptocurrency cannot survive. The masses simply will not and cannot accept something that is hard to get started with. Bitcoin is hard enough to explain as it is. What happens when the exchanges are blocked/shut down by the government and they want to know how they can buy some? Yeah... they won't.