One of the Major Reasons why some Government sees Bitcoin as a threat to their country is because people might use it as an opportunity against some other people who wanted to earn and make a living.
People who conduct fraud must be put to jail, it is as simple as that and for that bitcoin must not be blamed as if it looks like there is no scam with fiat currency, in hindsight scammers will find new ways to scam people, so if someone convinces you to double your money in a short period, just make sure there is no way it is possible.Hope this could help everyone and let us be cautious. Earning money is not that easy as what other think of it. It requires patience, dedication, determination and focus to reach your goal.
If you are intelligent, have an university education and have a clear focus on what you want to do with your life, you will eventually make a lot of money. 