Chicago and Washington DC are different cities. Are you contending the Pope shouldn’t come to the US if the President has something planned?

Your looking at it from a digital era. When things were paper based, month-day-year made a bunch of sense.

Our work paper archives are stored in “year” boxes (used to be filing cabinets). Open those, and you have folders that have month-day-year on their tab label. This makes it so you can quickly go through the folders sequentially quickly. If you did YYYYMMDD, you would need to ignore the first 4 numbers. DDMMYYY, the labels won’t be in numerical order.

Putting files back, you look for the correct year, but then it’s easy to drop the folder back into it’s numerical position.

In a digital structure, filing records is automated and we can use a search function, so we do store digital files as YYYYMMDD.