I think that governments need to regulate Bitcoin eventually for the mass adoption. In the end, regulation means becoming officially legal to use it under some conditions. But the regulations shouldn't be too strict. Otherwise, Bitcoin users won't be happy about it and Bitcoin can lose its meaning.
As far as I know, bitcoin does not need regulation from the government or anything because bitcoin has free movement and its price movement can only be moved from the interaction between buyers and sellers at an exchange so that the government cannot interfere in the circulation of bitcoin.
In some cause it needs regulation to avoid unnecessary scams and others.