What will most gambling addicts do when they can no longer gamble at casinos, and what do you think they'll do when the casinos reopen in several months from now? Will most of them be finally cured of their gambling addiction, or will most of them return to their old ways?
If they can reflect and they can ask for help from family and professional there is a good chance that they will become a reform gambler, but if they just busy themselves to gaming or whatever, the urge to gamble will be back once the casinos open, cutting them from gambling is a good way to stop gambling but without further help from professional it's going to be useless.