You should not generalize this. A lot of girls where I live know bitcoin and even have expressed some ideas to invest in a mining PC , life is becoming more and more difficult nowadays and every little bit of extra money helps be it cash or bitcoin. The media are warning everyday against bitcoin here but this have had an opposite effect, instead of running away because the media thinks bitcoin is a ponzi scheme more and more people are starting to buy , trade or build mining computers. Interest is in the highest level here. I am US citizen , living far away now and I am jealous of how this small country loves bitcoin so much. Many bitcoin holders here have girlfriends or fiances, and many are even married so your generalization is not correct. I am not going to tell which country this is as security is top concern in the bitcoin ecosystem.