Once the governament accept bitcoins means we will have only problems and that will benefit for governament. becasue they will start to collect tax on every bitcoin payment. The bitcoin is famous for N number of amount transaction for no tax. if we want to pay tax means then who will use this bitcoin everyone will use fiat money.
It is important to remember that, despite what people say, there has never been a time when bitcoin was untaxed. This makes your argument about using fiat confusing because you will still have to pay tax. Tax and bitcoin are two different topics because whether you use dollars, euros, or carrots, you always owe tax on your gain.