I wanted my younger sisters to learn riding bikes (my youngest sister still wants to learn bike riding). The only problem so far, Pakistan.
Most of the people here have no respect for women. They are like Hungry lions, Sadistic Baskurds. This is the same kind due to which those Women Wardens were forced back to Desk Jobs. And one definite reasons why there aren't many women drivers. Heck some people go crazy when they seen a women driver in a CAR, let alone on a bike.
Another aspect is that the concept of Women Driving is mostly taken negative here as they also include this in Be-Hayayee. Well i can't say this is wrong, but i also can't agree this is true 100%. Because I have seen girls riding bikes with Proper Clothing and Helmet (blacked out Visor), making it very difficult to identify the gender of rider on first glance. (But ofcourse "careful inspection" like our people do ... can identify them easily :P)
The point is, Women should be able to drive a car or a bike ... so that they know how to handle tough situations if needs be.