What are the benefits of adding both John and Sarah as authorized users on my credit card account?

Adding both John and Sarah as authorized users on your credit card account can help them build their credit history and improve their credit score. It can also make it easier for them to access credit when needed and can potentially earn you rewards or benefits if they use the card responsibly. However, it's important to monitor their spending and ensure they are responsible with the card to avoid any negative impact on your credit.