Imagine a database, or even a folder with multiple years in it. "Payroll_05-01-2025". Now all your files are sorted by month. You would have to scroll through "Payroll_05-08-1988"... etc forever before you reach 2025. And when you do, all of 2025 isn't together. ISO 8601 solves these issues automatically. It's time to adapt to a better system...