Why would anyone use the government digital currency?
Can't you read what I posted 3 posts above yours?
Yes, but I do not find it convincing. By the time the government gets around to creating a digital currency, bitcoin will already be commonly used for online purchases of all kinds. Considering bitcoin's other advantages - secure store of value, anti-inflation, frictionless global transfers - I see no way that a government digital currency wins the argument.
I guess you are not aware of
the concentration of Bitcoins which makes your assumption impossible to attain and that majority transactions are SatoshiDice and
perhaps much of the rest are coin mixers or FX to/from dollars.
Most people transact most of the time through some large corporation such Amazon, WalMart, McDonalds, etc.. Those cartels (who are of course aligned with the government) will control when the masses start using an electronic currency. And they can do the
Transactions Withholding Attack to take control over Bitcoin.