I am of the opinion that since gambling sites are mostly online and some has adds that pops up as advert on visited site, one should be able to disable or change their browser settings by blocking casino adds
This advertisements are unavoidable, even if you block casino advertisement on your browser, there is still a chance to see it pop up elsewhere on your phone or when you use another app with internet connection that is not your browser. These days some of these apps allow advertisements on them as a way for them to make extra.
disabling gambling sites on their browser settings so as not to gain access to it anymore till the number of days they deem fit to their resolve.
Serious addicted gamblers lack discipline in general, even if they disable access to gambling sites, and they do it themselves, In serious cases where they really feel like to gamble, they can still enable the access easily, to satisfy that urge.
This was just a little tip I gave as a possible solution.
It is a possible solution, but not everyones solution.