We can say that Casinos are considered as mature peoples playground. Since a player should be 18 years old, according to the law, before he/she can sit at a poker table and raise a hand, unless the player is registered in an online casino and uses his/her parent identification card, which I think is one in a million. Mature we say, but didn't it ever cross your mind that the casino itself is also giving you bluffs while you bluff your opponent?