There are modern better ways to fight gambling addiction such as which I have proposed in my opinion:
> Regularly educating your citizens on national TV programmes about the negatives of compulsive gambling. You can be sponsoring these programmes through the revenues accrued from taxes paid by these gambling companies. Or these companies could as well partner with initiatives and sponsor it.
> Provide skills acquisitions programmes and avenues of adequate job opportunities, because a lot of young people trooping into gambling are doing so as a result of a lack of sustainable means of income which makes them to see gambling is the all embracing means to make money.
Regularly educating your citizens on national TV or radio stations won't stop an addicted gambler to stop gambling most of them sees gambling as their only source of making money, gambling are specifically made for rich people even when a rich man is addicted to gambling people won't notice because he is not coming to beg anybody for money to gamble they don't even sell properties just to gamble.
If the government can provide some skills acquisitions as you have mentioned create job opportunities to their citizens both graduates and undergraduates i know there is no way it come get everybody but it will come how reduce the rate of of addicted gamblers in the country, been idol is not very good when occupy with some work your rate of gambling will definitely reduced.
Usually this do becomes problematic into those third world or developing countries on which they would be having that positive approach towards gambling on which they dont care up that much with those precautions on which made out by the government and others on which is trying out to spread the awareness on how gambling should be that dealt on with. Each Government would be having their own laws and regulations inside of their jurisdiction or their vicinity on which as long those decisions would be ethical and of the sake of the citizens then it would be always that a good thing. If we do try to zoom out on which we know that the government isnt only that getting taxes or revenue into gambling businesses out there on which there are some industries on which they would be having that huge contribution when it comes to tax generation. What matter the most on here is that it should be applied into those things that needs up to take up some focus or attention into. Its not actually a loss or lets say it make numbers but doesnt mean that they wont be able to move just because of that.