I think what governments like best are taxes.
So if bitcoins are handled correctly, without any illegal activities and everybody pays their taxes on them, then I am sure that no government would have something against the use of a cryptocurrency.
Unfortunatelly sometimes someof the things I mentioned are not fulfilled completely by a few users.
That one reason why governments are suspiciously against cryptocurrencies.
In my opinion that is just an excuse used by the governments to try to destroy bitcoin, they are going to say that bitcoin will never be able to comply with their guidelines and as such they will never accept it and I think governments will go as far as creating their own coin to try to rival bitcoin.
Yes that is a possibility that government will create their own coin on which they can have total control like fiat money and which can give tough competition to bitcoin in future and if it will hold good features then people will surely switch to that coin.