As I said, it's the nature of the product, as I just described.
However, again, the ultimate truth of it is that 71% of people are paying their balance off in full every month, so they're paying nothing.
For those who decide to carry a balance, there are low-rate cards available. Most issuers make one available. Some are multiple. In addition, as I mentioned, for customers who want to keep their existing card but still want to carry a balance—maybe they like the rewards they get from it, or it may have an association they want to maintain—there are innovative products like instalment loans and term loans that allow you to reduce the interest, make structured payments and, therefore, manage your debt.