yes i can say its more of a guy thing. one of the reasons why i think its so is because of the financially responsibilities that the men do shoulder and also that men always want to earn more so its pretty easy as a guy to get involved and also if you have friends that are into it then it will be more easier. but i think things are changing and have seen some ladies go into gambling although the percentage is still kind of low but maybe in some years to come we will have a good population of them especially for those who wants to do it for fun.
This could be one of the reasons because when a man has an obligation to always fulfill his family's needs, he can also make the mistake by doing gambling because he wants to increase his income because winning money at gambling means there is also a big chance of losing it.
Also because men have more opportunities to work and have money, they also have the opportunity to spend it on gambling, initially just for fun because they can interact with friends but gradually their intentions can change.
Maybe now men and women have equal shares in gambling, but women do it in secret and are reluctant to admit it in public because of social problems, especially when doing it at an online casino, it will be easy to do it in secret.