That's what I mean. My government also prohibits gambling, but people still access it and gamble. In fact, it's estimated that the gambling industry in my country alone is around $21.8 billion USD, which is a lot of money for an illegal industry. If only the government could legalize it, at least they could collect taxes from the operations of these gambling platforms.
In the end, that's what happens: banning an activity like that doesn't make it disappear, but rather condemns it to the underground, where it is more risky for players and the government doesn't collect taxes.
If it is for religious reasons, as you say, I understand that they will not listen to practical arguments.