One of the main advantages of using a card case is that it allows you to easily access and organize your cards. Instead of having to dig through your purse or wallet to find the card you need, you can simply open the case and quickly find the card you need. Many card cases also have multiple card slots or compartments, so you can separate your cards by category or usage, such as credit cards in one slot, IDs in another, and so on.
Another benefit of a card case is that it can help protect your cards from damage. Many card cases are made with RFID blocking material, which can help prevent identity theft by blocking RFID signals that can be used to steal your personal information. These cases also tend to be more durable and long-lasting than a typical wallet and can better protect your cards from wear and tear.