It is highly unlikely that any major government will ever go that route
Since that would effectively mean creating competition for the local currency which these governments print. Why would they want that? By going that way, they will be shooting themselves in the foot. Though some minor governments (and especially those which are already using some foreign currency as a legal tender) may in fact accept Bitcoin as a legitimate payment for taxes provided its price stabilizes over long enough term (but no sooner than that)
Yeah that was the point. I was trying to show where fiat gets its value from, and thats because governments accept them as payment for your dues. To be defined as real currency, BTC has to be accepted by the government for tax payments.