One is about their way of living. If gambling is already in the roots of their living since they were a kid and have seen it done by the older people, they have been with that tradition and so it's just brought up until they become adults and professionals.

Next is, that's the livelihood in their country and so many of its citizens are also gambling because it's been everywhere and the government earns a lot from the industry.

While they can afford not to allow their citizens to gamble and so with such policies, their main target is only to let tourists to gamble.