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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".
That is right, this is one of a best advantages among all on bitcoin, because having online wallet you can use it wherever you may go,as long as the said country is accept bitcoin and with a good internet connection. It will lessen your worries about what if you lost your mone while on travel, what if it will being steal that you don't know it will happen.