If the government allows bitcoin to growing then it will give a good effect because bitcoin has a good future it means it could be a jobs for many unemployment problems, could also be one of the state's income because if bitcoin becomes legal then people have to pay taxes for bitcoin that they have and income tax from the profit of bitcoin
If only the Government will understand how you really understand it will help the society. But they will not but always way a way to induce Taxes,and make it difficult for me and you to under the free transactions we are into now.