How do you write the year? Do you put decade before century?
How do you write numbers? Do you put the ones place before the tens?
Toddmorey asked why units don’t go from small to large and I explained that it is inconsistent with how we write numbers.
Thus, there’s no logical reason to do anything other than large to small. Anything other than ISO 8601 is preferred only for familiarity and no such inconsistent format is inherently more correct or logical.