In my opinion going to a physical casino has its advantages as well as disadvantages. It's okay to be entertained but there is no real guarantee of winning in gambling. If the person loses if he is sick it will be worse for his health. He will never recover physically if he worries too much after losing. In order to maintain his health he should keep himself occupied with activities other than gambling that will help him recover quickly.
If one knows about his health conditions, then it's better he moves far away from gambling if he can't maintain the ability of how to control himself while gambling, then it also have to depend on the desirability or sole reason why such gambler is gambling, considering his health condition, I don't expect such gambler to be gambling for money, instead for him to have fun and play, not minding whether he won or looses, these are my expectations on such gambler, as long as he could achieve that and control himself, he can gamble by having fun.Or as you said, such people should only gamble for fun and shouldn't do it for gains because those who gamble for gains tend to lose more money in it since they gamble irresponsibly, and when you gamble irresponsibly and lose a lot of money, you tend to be under a lot of pressure and be too much stressful.
