In the US, you can gamble at 18 in states like Florida, California, New York, and Alaska. However, each state has its own regulations regarding gambling age. Some states allow limited forms of gambling at 18, while others require individuals to be 21. It is crucial to check the specific laws and regulations of the state you are in before engaging in any form of gambling. Popular destinations for 18-year-old gamblers include tribal casinos, racetracks, and certain card rooms. Remember to gamble responsibly and within legal boundaries.