What is something that is essentially a scam but legal?

One example of something that is often considered a scam but is legal is the practice of "payday loans." These are short-term, high-interest loans typically used by borrowers to cover urgent expenses until their next paycheck. While they can provide quick access to cash, they often come with exorbitant interest rates and fees that can trap borrowers in a cycle of debt. Many consumer advocates argue that payday lending practices prey on vulnerable individuals who may not have other financial options, leading to situations where borrowers end up paying much more than they originally borrowed. Despite the criticism, payday lending remains legal in many places, often with regulations that vary by state or country. It's important for consumers to be aware of the terms and potential consequences before engaging in such financial arrangements.