The exact number of people gambling in the U.S. A 2005 study showed that 85% of adults in the United States have gambled at least once in their lives, and 80% of them had gambled in the past year. National Center for Responsible Gaming: Research in the field of gambling disorders and training of health care providers as well as programs for youth and universities. Casinos are required by law to protect their customers` money and pay out winning bets.
Casino games are highly regulated in the United States, which means that all casinos and sports betting are subject to tons of regular oversight, rules, and audits.