Overview of Oklahoma’s Casino Age Restrictions 7.5 Are there any exceptions to the age requirement for certain individuals, such as members of the military or employees of the casino?.7.4 Do all casinos in Oklahoma have the same age requirements or do they vary by location?.7.3 Are there any restrictions on how much money I can gamble with at a casino in Oklahoma?.7.2 Can I bring my own alcohol into the casino or do I have to purchase drinks there?.7.1 What penalties will I face if I try to enter a casino in Oklahoma while underage?.6 Conclusion: Enjoy Your Time at the Casino Responsibly!.2 Legal Age Requirement for Different Casino Games.1 Overview of Oklahoma’s Casino Age Restrictions.