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If you are traveling and lose your credit card, but in a country that has a reasonably active Bitcoin scene, you can sell some BTC to pay bills while "over there".
This may become an issue for us.
Here is a case for having an online wallet, "travels anywhere".
You can cross the national border with all the bitcoins stored in an electronic device or remember the encrypted "key" sequence if you do not want to carry any items. This is the biggest benefit of bitcoin