5. Privacy
Since you don't have to register for an account at a financial institution to transact with cryptocurrency, you can maintain a level of privacy. Transactions are pseudonymous, which means you have an identifier on the blockchain -- your wallet address -- but it doesn't include any specific information about you.
This level of privacy can be desirable in many cases (both innocent and illicit). That said, if someone connects a wallet address with an identity, all of the transaction data is public. There are several ways to further mask transactions, as well as several coins that are privacy-focused to enhance the private nature of cryptocurrency.