For old people they believe that its a dirty money so every one will stay out of gambling, but for modern people they don't think it as dirty money,some people play using calculations and strategy, so they do hard work of research to make profit, so I don't consider gambling money as dirty money, dirty money is money that come from doing criminal things and I don't see gambling as a criminal activity
It's true that the old folks that has not been open to gambling and will consider it as a dirty money. They don't know that this industry is bigger than they are thinking and that's why some countries prosper through it. And for the religions that treats it like that, let them believe it and we have to respect their beliefs and so the old folks. That's what they think and we just have to understand the situation on why they have that kind of belief with money from gambling.