To my opinion the cause for something like that is again ignorance. I think that regulation that is mentioned in many countries is often mixed with centralization which is something that is not natural to Bitcoin because it's functioning totaly different than fiat currencies. Also some warnings to people that Bitcoin is volatile and risky investment that come from national banks are often interpretated as hostile behaviour towards Bitcoin and attempts to make people not to use it.
Is there any hope that Bitcoin users and governments will find the common language and help Bitcoin together to be more accepted in economy, especialy by businesses and to become more "legal" everywhere?
I think the thing that everyone is afraid in the government is if every user is asked to pay taxes that may be very large that's why everyone have fear in the government.