Nowadays we do not use paper money anymore. We do all our shopping online. We do not need paper money for clothes, food, etc.
Payment systems are constantly changing. Bitcoin is the result of this change.
So Bitcoin is a real payment system. Yes bitcoin is a money.
but i do not think that still there any place in the world where people are totally depending on online currency and not sing paper money at all. although there are some places where people are using bitcoin as optional but not totally depending on it for living.
although it is a fact that still bitcoin cannot be use as currency in all over the world and in very few places it can use use directly for shopping but we are still hopeful and very soon we will also be able to use bitcoin for shopping in our locla shops.