I've seen many times (naked) women accepting bitcoins.
Therefore this issue is no longer Interesting.
Yes you are right in the beginning i thought women were hard to convince since i have a hard time convincing my wife. But in facebook there are multiple women who earns bitcoin more than men. And they are more active then man. They are more active and serious about bitcoin, they are also more of a risk taker and some could use their beauty to ask for bitcoin in gambling game. Damn women, we men are left behind in bitcoin industry.
Do not estimate all the other women based on your wife. Because it is much easier for convincing other woman rather than your wife for reason of the other people might be ready to believe your words whereas a wife might be at high level of ignorance with her husband's words. But overall I too agree it is too hard to motivate women to use bitcoins.
Yes, motivating a woman to use bitcoin must have some proper approach. If you are talking to a new women without any concrete example then that might be end up with unwated results. In my view women are more practical, when we are showing them the real time proof, then it would be much easier to motivate them to adopt bitcoin for their daily life.