Isn't just because we've already been trained on that since learning the alphabet? Imagine giving a human the same question, but sort "aa" before "bb" but after "cc".
Maybe it's "just" because of previous training, but it's still a very useful ability, which programs do not have.
Being able to solve quickly the most common cases (which rely in such "common knowledge") would automate a lot of work that now requires writing a complex program in advance, and would allow the user to concentrate on the outliers that require more thought.
Being able to solve quickly the most common cases (which rely in such "common knowledge") would automate a lot of work that now requires writing a complex program in advance, and would allow the user to concentrate on the outliers that require more thought.