They don't mind, as only gambling is manipulating them. They are thinking that they are still okay and still enjoying chasing their losses,
addictions is not easy to face and accept.
With those addicted gamblers, only a few of them are in the position where they already admitted, or they already accepting that they needed professional help to quit away from these activities.
It's hard to face reality when you are already engaging too much from inside gambling.
Not really, the worst form of deception is self-deception, as people deep down know they are experimenting some difficulties with their gambling, but they simply refuse to accept this as accepting the truth is too hard for them.
Since the moment they do so then they cannot keep pretending that everything is right and now they will have to make an effort to fix things up, and when they think of all the effort they will have to do to reverse their current situation the addicted get afraid they may fail, even if they try to overcome their addiction with everything they have.