Credit cards can be a convenient way to complete purchases and build your credit, but they can come with some negatives as well. If you use your credit card and pay it off each month, it is generally something to build your credit and help with day to day purchases. While getting behind on credit card payments will hurt your credit score, it can also set you up for years of financial hardship. Credit cards generally have a higher interest rate than the return rate of investments. This being said, credit card debit will generally accumulate much quicker than investment returns.
According to investopedia the average annual return for the S&P 500 is approximately 7.96% from 1957-2018. To compare this to the "All New Offers" from the image above, the average interest rate for a new offer is 19.24%. The credit card interest rate is almost 2.5 times higher than the average return. This means that on average credit card debt will increase at 2.5 times the rate of investment returns. It is crucial to pay off credit card debt as soon as possible to avoid large bills and a negative credit score impact.