being Mulsim and living in a muslim coountry owning casino is not almost possible, as still there are a number of people who are running casino illegally but still if they caught by the police they will be put in jail.
because a Muslim is supposed to obey what is forbidden by religion. Gambling is one thing that is forbidden for a Muslim, and clearly, those countries that follow the teachings of Islam would imprison people who gamble.
yes gambling is totally forbidden in Islam and that is the reason that gambling is totally forbidden in Islam. but i think gambling is also forbidden in other religion, may be very little religion will allow gambling.