Might help make life better if bitcoin becomes legal currency. Many parties will benefit from bitcoin. But for a country less able to protect value of currency, it may be an inflationary disaster for the country and its people.
Yes I agree making it a legalize currency is not an easy task for the countries though I am sure in many countries the economists will be working on it currently to how to deal with the bitcoin for to making it legal. It will benefit mostly the public because it is something related to the common man. The bitcoin have a very much positive effect on the life of a common man.