Act as a financial analyst with 10+ years of experience in consumer behavior and credit card trends. Analyze how credit card rewards programs influence spending habits among [DEMOGRAPHIC: e.g., millennials, high-income earners, frequent travelers]. Discuss the psychological and financial effects, including whether rewards lead to increased spending, debt accumulation, or smarter budgeting. Provide data-driven insights on [METRIC: e.g., average monthly spend, redemption rates, cashback utilization] and compare different types of rewards (e.g., cashback, points, travel miles). Include recommendations for [AUDIENCE: e.g., consumers, credit card issuers, policymakers] to optimize benefits while minimizing financial risks. Support your analysis with real-world examples and studies.