They are basically big and rich people. For them, gambling is a recreational activity. They do it to keep themselves cool and to entertain themselves. For them, losing or winning doesn’t matter. But the factor of unpredictable outcomes is what gives a kick to them. These casinos provide extra bonuses to these wealthy and elderly rich people, and similarly, the business goes on. In rich countries this is very common, and these old men gamble regularly with alcohol in other hands.