Oliver I don't think that was Dave's point. He's trying to say, (and rightly so IMO) that the larger and more dangerous the vehicle, the greater responsibility the driver has to show care and pay attention. this applies regardless of how often the driver gets behind the wheel.
I know it probably comes across that i'm just hunting for an argument, I promise i'm not, but I think that's a very dangerous attitude to take, saying you have less responsiblitiy because you're on a bike, just remember, a cyclist can cause an accident on the road as anyone else, sure, they don't kill people directly very often, but that's not to say they don't cause accidents too, anyway, back to my point, if you're on the road, you should be paying 100% attention, which is why I think this "##### should pay greater attention" is a dangerous train of thought, it makes others think they can get away with paying less attention, we all share the same road, we should all share the same responsibilities.
I know it probably comes across that i'm just hunting for an argument, I promise i'm not, but I think that's a very dangerous attitude to take, saying you have less responsiblitiy because you're on a bike, just remember, a cyclist can cause an accident on the road as anyone else, sure, they don't kill people directly very often, but that's not to say they don't cause accidents too, anyway, back to my point, if you're on the road, you should be paying 100% attention, which is why I think this "##### should pay greater attention" is a dangerous train of thought, it makes others think they can get away with paying less attention, we all share the same road, we should all share the same responsibilities.