Since gambling became a source to get money and also how technology has made it easier to secure privacy and anonymity a lot of women are now very interested in gambling, and also the condition of some country demands that you do something extra if you want to get money since government are now unable to provide for citizens.
It's true that one may earn money through gambling, but gambling is not a source of getting money unless we are deceiving ourselves. Those who have the notion that they can make money through gambling are the most affected by it. Gambling is a risky activity, it doesn't guarantee anything for the gambler, so we should always perish the idea that it is the place to make money but rather a source of having fun and trying our luck if we can earn money from it. Also, women are being marginalised and stereotyped regarding gambling, and region is another factor we can think of here, but technology has helped well in bridging that these days.
Now, if a woman is gambling in her closet, you may never know unless she tells you she is gambling. After all, we are all human beings, so what a man is doing, women should have that opportunity to do it as well, and I love that. Thanks to technology for a whole lot of things and I hope that women will continue to apply wisdom in their gambling so that they do not regret their participation like most people do. With time, if it continues this way since the population of the world's men and women are roughly the same, the percentage of women and men gambling will roughly be the same.