Gambling has nothing to do with intelligence; it is just a game of interest and fun. A particular game becomes a favorite for a gambler based on familiarity. If I'm very familiar with sports, perhaps from my environment and the people around me, it is very likely that I will take an interest in sports games, and they will become my favorite games. There are some games that I have never played simply because I am not familiar with them, and because of that, I have no interest in them.