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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".
Many advantages we can have if we owning bitcoin. Beside what you mention, bitcoin now become most popular invesment because can give gain more than 1000% on last year.
There are many ways bitcoin is helping the society in increasing the level of satisfaction and welfare of the people. The few uses of bitcoin that you have mentioned are highly commendable. Bitcoin has changed the traditional methods of clearing payments and those who are familiar with the worth of this coin are always accepting payments in bitcoin wholeheartedly. Many international flights, restaurants and educational institutions are accepting bitcoin.