Not only in crypto, but if you look financial universe in general you will see there are very few women compared to the number of men involved on this kind of activity. I believe it's just part of women nature to not have interest for these things. Usually women prefer to engage in another kinds of activity like cookery, decoration, aesthetic...
Of course there are exceptions and there is nothing wrong with them, but that is inevitably the main rule that many people avoid saying in public nowadays fearing retaliations from the modern demagogic society.
Yes, but there are quite a lot of career women out there who still choose to work and choose activities such as cooking as a sideline. when it comes to crypto, I just feel that many don't know how to find crypto apart from trading, or something else. maybe, if they know and understand how to earn crypto with little risk, I think they will start learning about this.
I feel like the career women just do not prefer the financial world because they already carved a new thing for themselves and do not need to be 1 in 10 women in another field. Look at the marketing world, if you go to any marketing agency and check the numbers you will see that its mainly women that works there, or look at cafe business you will see that there are a lot of women working there (not just waitress but also owners too) or look at literature business you will see that there are a lot of women there too.
In the end they created their own sector and got into that, and since women were not commonly working 50+ years ago they had to start somewhere they all stick together and build a strong network in certain sectors, finance and crypto never became one, because they rather work with other women then become minority in men's world. Which I totally understand, I would prefer that as well if I were them.