I think the referral to 'lemmings' says it all.
In my grandads day, very few people owned cars, and those that did drove because they wanted to drive. Nowadays, everyone owns a car and everyone drives, simply because of necessity, and very few take driving as a pleasure, rather than a chore.
Back in the seventies and early eighties, I programmed computers all the way from Commodore PETs to PDP-11s Minis. The only people who had computers were those that desired them, and they knew how they worked. They were enthusiasts. These days, everyone has a computer, whether it be a desktop, laptop, pad or smart phone. They have become commonplace and no one has any real enthusiasm any more.
I think that is what defines those who love/want to drive, and those who simply drive. Enthusiasm. Judging by the large number of Plebmobiles on the road, many don't even consider a car a fashion statement, and will drive anything, even though any rational male or female would not be seen dead in such a vehicle.
So, the question of who is the better driver needs to be split in to two groups.
1) Do women enthusiasts make better drivers than their male enthusiasts?
2) Of the rest (the sheep), which sex is safer generally on the road?
When you take a hobby or ability and move it from the domain of the enthusiast to the general domain of everybody, you change the profile beyond recognition, and make it so commonplace that no one takes pride any more.
Back in the seventies and eighties, I was proud of my programming skill, yet in this day and age, no one cares any more. The same has happened to motoring. So many people are doing it that it becomes impossible to shine when there are so many imbeciles who's only reason to drive is to get from A to B, and have no passion for the drive, or the vehicle they have chosen to drive.
As some I have known have said, if it's got four wheels and a steering wheel, that is all they need to have. Sad that such a indifference to one of man's greatest achievements is so prevalent. Mass transport should be praised, not taken for granted.
So, do women make better drivers than men?
In my opinion, there are too many sheep who drive through necessity, and have no empathy for the road or the vehicle they drive. They simply drive, so regardless of their gender, they simply exist.
As for the enthusiasts, those who drive because they enjoy it, it is hard to determine which sex is the better driver. The simple fact that someone has chosen a specific type of vehicle, or chosen to drive a specific route, makes them a cut above the rest of the population.
I suppose there is one final class of driver. Those who buy something as a fashion statement, even though they have no passion to drive. Look at all those Chelsea Tractors and Bentley Continentals being driven, simply because they can afford to drive them. I would rather drive a Chelsea Tractor or a Bentley because I WANTED TO DRIVE THEM, than to simply show off to my neighbours that I can drive them.
I would say that most of the members of this forum are enthusiasts, who want a Merc, or whatever they drive, because they enjoy driving. I would imagine there is a small section of the community who are also badge snobs and own a Merc as a status symbol. Then there will be a tiny section of the community who own a Merc and have it sat on their drive simply to brag to the neighbours that they have a Merc, yet drive their Merc out of necessity rather than pleasure. Thankfully, most of us are enthusiasts, and not sheep.