Sticklers About the Proper Format for the Date
The United States consistently chooses to diverge from the norm, even in matters as seemingly trivial as formatting dates uniquely. In most of the world, it is written day-month-year, but in the US, it is written month-day-year. While the exact rationale behind this disparity remains uncertain, it undoubtedly perplexes individuals when they venture beyond the borders of the United States and encounter the need to transcribe dates in an unfamiliar format.
You can probably guess that people have had to cross out many incorrect dates because of this difference.