Contrary to the common perception of users paying off balances monthly ("transactors"), the majority—about 60%—are "revolvers" who carry debt. This group is the primary source of profit for card issuers, as they are subject to interest rates now averaging a staggering 23%.

Federal Reserve policy requires financial institutions to 'charge off' delinquent debt to maintain accurate books. This accounting mandate, rather than a simple business decision, creates the portfolios of bad debt that are sold to third-party collectors, shaping the entire industry.

Senator Warren highlights a critical omission in standard economic calculations: the cost of servicing debt. Expenses like credit card interest and student loan payments are often left out, meaning official data doesn't capture the full financial pressure American families are facing.

While many assume high credit card rates cover default risk, actual charge-offs on revolving balances average only 5.75%. This is a significant cost but accounts for less than a third of the typical interest rate spread, indicating that other factors like risk premiums and operating costs are major drivers.

Despite political rhetoric against social programs, 50% of Americans already receive some form of public assistance. This reveals a fundamental disconnect between America's self-perception as a nation of rugged individualists and the economic reality of its widespread dependence on a government safety net.

Widespread cancellation of medical debt, while well-intentioned, may remove consumer pressure on providers. If patients don't need to shop around or question prices because they anticipate forgiveness, it eliminates a key market force needed to control escalating costs.

Affirm's CEO argues the core flaw of credit cards is not high APRs, but a business model that profits from consumer mistakes. Lenders are incentivized by compounding interest and late fees, meaning they benefit when customers take longer to pay and stumble.

People under financial stress often pay revolving credit to maintain purchasing power while letting medical bills go unpaid. This creates a 'legibility crisis' at bankruptcy, making it appear that medical debt is the primary issue and thus misinforming public policy.

While the overall debt service ratio appears low, this average is skewed by high-income households with minimal debt. Lower and middle-income families are facing significant financial pressure and rising delinquencies, a critical detail missed when only looking at macroeconomic aggregates.