The citizens of Monaco are forbidden to enter the gaming rooms of the casino. The rule banning all Monegasques from gambling or working at the casino was an initiative of Princess Caroline, the de facto regent of Monaco, who amended the rules on moral grounds.

Almost all forms of gambling beyond horse racing and a state-administered lottery are banned. This prohibition reflects the Buddhist values rooted in much of Thai society. Making an exception for casinos would open the door to global players.