Plenty of people have a coworker, friend, or family member who insists credit cards are a total scam. It’s easy to see why they feel that way when headlines are full of sky-high interest rates, debt traps, and stories about people getting buried in payments. Credit cards absolutely can become expensive if they’re used carelessly. But refusing to use them at all can also come with tradeoffs that affect borrowing, convenience, and even consumer protections.