There is a chance that the nature of the game has something to do with the gender that plays in that game most. There is no official study for this yet, but I am thinking that we will find more females playing and drawn to luck-based games than skill-based games because of how difficult the process of learning skill-based games may be.
Another observation about luck-based games that a new gambler with an interest in them has to know is that they have the potential to make you, as a gambler, spend more money gambling than skill-based games.
What do you think?