While it might seem odd in some countries or cultures, I don't see women gambling any differently than men. The reason they are probably doing it more often now is because of equality laws which have equalized pay a lot more, giving them comparable options to men. You'll also find that plenty of gambling companies will have worked on making them feel safer in physical locations but there is also a lot more women targeted gambling advertising going on as well. Things like bingo games have exploded in popularity in recent years because they are so much more accessible online and targeted at the female audience.
They are picking up the vices that in the past were exclusive or mostly men's vices. They smoke more, drink more and even watch a lot more porn. Gambling is not going to be different. But I don't see many of them live. I think it's the same as in porn. When you had to physically go to a place to buy or rent a movie there were no women alone to go, but from their phone without anyone seeing them they watch porn or gamble.