As I am from India, it is illegal to gamble here. Even though there is no specific laws to frame online gambling, people are scared to expose their identity. Crypto currencies are really helpful to be anonymous. Moreover, fast withdrawals and convenience are bonuses of using it.
Yeah same here, in my country indonesia also banned all gambling activity. That's why people here gamble on online gambling. Online gambling is popular here, not only on cryptocurrency but fiat online gambling also popular.