Lol! Good initiative by the people, but I feel that such parades do very little to help out of control gamblers fight their addictions. What truly matters the most is inner willpower in these cases.
The ones that posess strong willpower can overcome their gambling addiction while the ones with weak willpower will probably never overcome this issue.
The willpower you just mentioned is so powerful to the point that if everybody has it, then the therapy and psychiatry industry would be so poor. But unfortunately, the reserve is the case in our society, people often do not fight for it or train themselves to maintain the sanity that will help their willpower to grow. In gambling, I believe it's good for gamblers who are adults to be able to control themselves, good, it's not all of us who are mature, but this shouldn't be so obvious in our ability to restrain what is bad. The moment you start gambling, the first thing have to come into your mind is how you will not let this thing control you. If you could have this in mind with determination, I'm sure you will be able to resist even without external help. Another thing that gamblers should have at the back of their minds when they start betting is that gambling is not the place they can make their fortunes of life.
Eventually, if the fortune comes from it, they wouldn't put their mind in it to the point that it would affect them. If any gambler possesses these two points from day 1 and also preserves/practices them daily, I believe their willpower would be preserved since they do not give in entirely to gambling, so it wouldn't control them in that sense.