Even if people will start making a plastic cards in different countries you will not have a chanse to pay with bitcoin cause it's illegal, better to leave bitcoin now and wait when it become legal everywhere.
I can't see why you could not use bitcoin debit cards in countries that still outlaw bitcoin.
When using most of these cards your not really spending your bitcoins at the shop your spending local currency that has been converted from bitcoin to the card.
Bitcoin is probably legal in more countries than not now and more will follow soon enough.
It is not also about just waiting for some gang calling themselves the government to make something legal. Bitcoin is about taking that power back into your own hands, finally having a way to completely take care of our own money and finances.
We are loosing more and more personal freedom everyday and p2p decentralized networks are going to help us regain some control.