I am being imaginative, but can government intervene mining? or even replace tax with mining fees if bitcoin becomes the main stream of economy,m since bitcoin transactions are hard to tax?
Which government do you refer to?
In many countries like the United States or European Union Bitcoin is already regulated to some degree. Regarding Bitcoin becoming mainstream, this is unlikely to happen any time soon because it apparently means displacement of fiat currencies, but no government will ever agree to this. Why would they want to replace the currency which they can fully control with something they can't control?
Yes, I am agree with you friends. That will be bad deal for them. Goverment need the tax to build infrastructure of their country but some of country are take high rate in tax. They will get difficulty to trace bitcoin transaction. Goverment will choose the one that can give them benefit and full of control. The fact is bitcoin give so many advantage to the users but no to goverment.