Not that it really matters, but I am female and do use Bitcoin.
You may be one who loves to take risk.
Most of the girls to whom I have talked about bitcoin ecosystem and it's benefits, they simply not interested in buying any bitcoins rather they started using faucets and some of them joined this forum for more knowledge.
But 7 out 10 boys, convinced by my words and invested in bitcoin buying.
There is no wonder in your failure with female aspirants of bitcoins. In my experience usually women are more cautious on new investments and they are more successful in financial planning than men. Do not waste your time by taking bitcoin to a women.
Yes usually girls are very much stubborn on taking new technical things and more negligible with respect to money matters. These stubborn and negligible are just due to prevent any unnecessary losses on taking new things which are seemed risky. I find no wrong in their behaviors.