Bitcoin is the most popular crypto currency and therefore a currency of such will be dominated either now or in the future.
Women engage in crypto currency transactions also like men do the reason you may feel they don't is because those that don't have not much idea about it.
Even though now we realize that Bitcoin has spread widely throughout the world, as well as someone's knowledge of Bitcoin from both men and women, but I think the power of interest is greater than that of women, maybe saying that they know this, not all of them know about Bitcoin, and some of them may only know the physical appearance of Bitcoin and nothing more, and there are also some women who know about Bitcoin and how it works and the transactions involved.
The rest depends on the media and their interest in exploring full knowledge about Bitcoin, maybe for those who are interested to be more inclined to know about it and participate I think they have joined us all here for a long time, the problem is maybe only in the mindset part of them all, can't attract the conclusion that they don't use it, even though not 100% of women know about it, And I think the effect will be big for Bitcoin if the quantity of women will be bigger.