Addictions in general are used as mean to escape from aversive feelings, emotions and memories, therefore, with gambling it's not different. If people were more sincere to their selves and conscious of their real needs and aspirations in life, we would see less cases of addiction in the world.
Indeed, it is as you say, but to be good with yourself and have control over everything you have to do only one thing, control the money you are going to spend at the casino and if you spend it, then respect not to put more money into the game, that is the secret, that is where emotions are controlled, instincts are controlled, absolutely everything is controlled, because reason is above feelings and emotions, which affects anyone, but controlling money no longer affects it and addiction would not exist, that is why I insist so much that players apply it.