Addicted people have a hard time controlling their emotions, They just want to gamble, and they do it more and more each time, It's difficult to find themselves in a situation like this In a casino, the more you bet in the long term, the more you lose But it's not the casino's fault, it's the person's fault if they don't control themselves.
I agree with this one, and the most of the time the player is not actually aware that he/she is already addicted some of them are aware of what they are doing but doesn't actually know yet the effect of what they've done. If it's still early and the gambler can still control its emotion, then it's better and it might not be easy but once they overcome it especially with the bankroll management, they won't really be addicted to it. Other thing is they need to go to rehab or find other things they can do to focus with.
I commend gambling sites where some of them ban the users if they really notice addicted behavior, some of them really don't care about the health being of their players and they just let them play uncontrollably.