It might be true that one of the reasons why some governments oppose bitcoin is due to the fact that they can't control it, unfortunately. As government, they might want to be able to take control, but sadly it cannot be done with bitcoin. It's a good thing of course. Although i believed that not all government has bad intention like it, but the fact that we can have our own money and be our own bank is true. In banks, our money won't necessarily always be there. Even if we have $100,000 doesn't mean that there's $100,000 in the bank, they will use our money to give credit and such, and it might be difficult for us to get all of our money immediately if it's such a huge amount. But not with bitcoin, if we have 1 btc, then it's one btc for us. No one taking it or distributing it to others like bank.