A cashless World

Imagine a world without cash. Imagine a world where physical money becomes extinct. What would a world like that be like?
Before the invention of the paper money by people in China a long time ago, people have always had forms of transaction which invariably leads to Trade-by-barter of goods and services.
Since the introduction of paper money that has different values, it has subtly become the next free-flowing thing after water.
In today’s world, what can you do without money? You can certainly move around with your debit and credit cards in your wallet and do most of your transactions but a bill or a coin to toss here and there is not at all out of place.
Taking reality into cognizance, the world from the UK to the Cayman Islands, Somalia to Italy, Niger to Taiwan does not have the capability to eliminate cash from the system.
Imagine taking your card to Bolade Oshodi, Lagos to swipe your card for just two oranges. Even if the orange seller tells you there is a machine available for use, you’ll probably think it is a ploy to steal your card information.
Cultures, Norms and Values will be challenged leading to a new world order.
Some people will flow with the dynamics and make more money while some would become poor in no time because they can’t just get the concept and survive without physical cash in their transactions.
By legislation or something, if everybody in the world, residents and visitors alike need to have a consolidated card that will contain their bio-data, bank account details and balances…I presume that financial crime will drastically reduce. There would be financial accountability that will make the world a sane place. Morals as well are bound to be on the increase as some people would not want to have a traceable anomaly behavior to them.
Developing countries will now have a real chance of infrastructural development.
People in developing countries can now walk the streets at anytime of their choosing without the fear of the men of the underworld.
In developed countries, illegal immigrants will be virtually non-existent.
What is your take on this?