Casino age requirements vary by jurisdiction, typically ranging from 18 to 21 years old. In most U.S. states, individuals must be at least 21 to gamble in casinos, while some allow 18-year-olds to participate in certain games or activities. These regulations are in place to ensure responsible gambling and protect minors. It's essential for players to verify the specific age requirements of their local casinos, as violations can lead to penalties for both the establishment and the individual. Always check local laws before planning a visit to ensure compliance and a smooth gaming experience.