The governments are not likely to allow this to happen.
A good chunk of the governments income is based off income taxes.
Long before an average consumer would be willing to accept their pay in BTC they would need to be able to buy groceries/etc. with BTC and without a extra fee.
Course not, why would I spend more to get less?
The ineptitude of Target's security reflects poorly on them, not debit/credit cards.
Sorta like all the bitcoin scams don't reflect badly on BTC,
they reflect poorly on the individuals scamming(Mt. Gox?).