I can't say if I have seen any women playing in a casino in front of me, but I have seen them mostly as dealers in various live games which shows that women are aware of the gambling field and are involved in this industry at a bigger pace.
It isn't like women can't handle the pressure, they only don't show off their powers because they understand their responsibility. So that is why most women will not show their gambling ability.
Is like the system is changing this time because I have seen women who are taking more male role and they are taking it up well. I know that they start getting use to playing casino games by following after their male friends and even the male delight in being accompanied by the girl friends and from that the female keep learning the ropes from their boy friend that is how they learn. People say the female are not able to handle pressure but that is not true with gambling because it involves money, they put outside emotions. Women are stronger gender when it comes to strike the deal, they are not wasteful and so if it won't bring positive results they could wait but men want to try because they are pressured more financially.