When it comes to car insurance for women, there is little doubt that insurers treat women differently than they do men, although this fact is not published openly. It's actually in the woman's favor however that this happens and they will typically pay less than the average man when it comes to the monthly insurance bill.
There are several reasons why this is so, but it basically boils down to the fact that a woman is much less likely to take a chance, or 'race' their cars than the average guy. While it is true that there are plenty of daredevil women out there who feel the need for speed and the thrills of pushing the bar, but by and large, a guy is much more likely to do so on average than a woman. It's statistically proven that women are much safer drivers than the men are.
It's not necessarily that one gender is better at driving than the other. It's just that it seems that most men are predisposed of taking risks. One way of looking at things is to take a look at the race car circuit. It's not that women are banned from the sport it's just that more men are willing to take the risk involved in being a race car driver than their female counterparts.
There is a difference between drivers that are skillful and those who are safe drivers. That's why you will typically find that car insurance for women will cost less money. Other reasons are the root cause of this fact as well.
For instance, men are typically more aggressive and prone to 'road rage' than women, and seem to take on the 'me first' attitude when driving, meaning they want to lead the pack in a line of traffic and will take chances at passing vehicles on the road in order to get in front.
Understand now, that there is no exclusive way to differentiate any one driver from another without looking at each person individually. This leaves the insurance companies to rely solely on traffic and accident statistics when setting their rates and taking risks on those that they insure. It doesn't appear that car insurance for women is going to cost more than that for men anytime soon.
The best way men can work to bring their car insurance premiums down is to drive safe and maintain a good driving record.