It provides a new level of security for money. It is exponentially harder to 'hack' or 'leak' your data than traditional money systems.
Crypto Currency cannot be influenced by governments or politicians, meaning it is built to be 'unquestionably fair' all over the world.
If you go on holiday and use crypto currency to pay for items, you do not need to worry about currency exchange costs. Crypto currency offers a singular currency for the world.