I'm not sure where all that came from as I'm an American. The Brits have it right regardless of the tools for driving that are presented nowadays.
Most of them do not drive or drive much period (trains are extremely popular over there and go almost everywhere in the country) and even if they do, they do not drive far because you can traverse most of the length of the entire United Kingdom in less than half a day so things like long-haul driving, driving in strange locales, etc. don't apply the same way they do in the U.S. The number of freeways over there is minuscule compared to the U.S. as well and most vehicles are much lighter and smaller.
10-2 and 9-3 are the only proper ways to hold a steering wheel that allows you to react quickly to unknowns.
Actually, 9-3 is not
that great, IMO due to a lack of leverage on the steering wheel (i.e. you have only a half turn before you hit 12-6, which is awkward relative to the human body's perpendicular relationship to the steering position. Feeding the wheel may keep your other hand on the wheel, but (especially without power steering), you still need to be able to MOVE the wheel quickly in a split second emergency and running out of leverage would be bad. With power steering, I think it's just a bit more awkward feeling as you don't really need to move the wheel much to avoid a collision at medium to higher speeds. It's less of an issue with power steering than without, but I think there's a reason 10-2 was originally chosen and leverage action relative to either turning direction is it. 11-4 feels less awkward to me and provides massive leverage in one direction and lets you rest your arms on the freeway (where I most use it and where you don't want much steering wheel movement; the 4 position steadies the wheel and rests the right arm and keeps it very close the manual transmission lever on left-hand drive cars (11-4 seems to be a current favorite of the California Highway Patrol). On long drives, you reverse the position to 2-7 to rest the other arm and in places like the UK, would keep your left arm near the stick.
In nearly a quarter century of driving, I've never caused an accident on the road and the two accidents I've been involved in had the other driver either drunk or asleep in the other vehicle (latter the result of a long-haul drive from Myrtle Beach to the Mid-West). Of course, I have driven a stick shift 22 of those 23 years so I'm not saying it's not good to learn on one.
If you can't feed the wheel then you need to take one hand off the steering wheel when turning and that is the big problem feeding the wheel is meant to prevent. Further, power steering is no impediment to feeding the wheel.
My point is that most collisions don't occur
in a turn so much as you need to be able
to turn (react) quickly if someone moves out of the lane, etc. Braking is rarely useful in such circumstances (I've avoided 10x more potential collisions with people moving over the center line from the other weay, etc. by quick steering adjustments than any kind of braking). This is where I fear computer-driven cars will always fail over a real driver. It's not that Google's automatic cars are at
fault in the accidents they've been in, but rather they totally fail to
avoid many of the accidents an actual human would easily react to better (assuming that human isn't trying to text, shave or eat a hamburger at the time). Truck drivers, meanwhile, have successfully been driving one-handed on the freeway to talk on the CB for many decades now with relatively few incidents not involving falling asleep (the number one cause of most fatal trucking accidents where the driver is at fault).
It's not that one cannot make short uses of one of their hands in appropriate driving conditions (i.e. the freeway where you don't typically make a lot of quick turns), but rather people are trying to do things that aren't possible with one hand (e.g. text) or talk in situations (city driving in traffic around 90-degree intersections, etc.) where they need both hands on the wheel. That is the real problem in the U.S. People don't care about driving. To them, it's just a way to get where they going and that is why so many are turning in favor or self-driving cars, especially in the Millennial generation that cares more about updating their Facebook account than breathing. Personally, I think it's travesty (social media) as people no longer care about something they used to yearn to do (driving) and social interactions have been reduced to two people texting each other that are sitting next to each other on the couch (rather than talk).