I don't think that assumption is required here. Whenever predicting the future, it must be dealt in probabilities, not certainties. So if you're playing poker

I don't think that assumption is required here. Whenever predicting the future, it must be dealt in probabilities, not certainties. So if you're playing poker, you must evaluate the strength of your hand based on the cards dealt so far. Retroactively saying that a decision was made correctly because the cards drawn favored it isn't a useful analysis. In the same way, it isn't necessary to assume that he will cause harm, only that it increases the likelihood of causing harm. With a larger car, a driver is less able to see pedestrians, and children/shorter adults may be blocked from view entirely. Pedestrian injuries and deaths are on the rise in the US, opposite the general trend elsewhere. The primary difference is the prevalence of unnecessarily large cars in the US.