Its really simple, if you only know what woman likes , in general woman likes modeling/clothing/cosmetic... etc you can encourage/motivate them that when they earn bitcoin they will be able to earn these stuff, and telling them they can earn bitcoin in there free time, am sure you will be able to get woman to use bitcoin in this way.
Women need real money rather than the currency of the Internet. This is for example when a girl wants to buy something, you definitely need to feel the goods and not ordered on the Internet, something you do not know that.