Addicted gambling victims will remain addictive on that fact alone. The only conductive effect I think such regulations would utter on the gamblers is that it'd limit breeding new coming gamblers since gambling has become something almost every in your country want to Play.
I'd take such cases to be abusive business people on such in your own place are gambling uncontestably which keys the reason of getting addicted.
So the ban limiting the public to the hearing or seeing of gambling Ads will reduce that zeal of gambling.