because no logical group of people currently use YYYYDDMM
You are saying it like if MMDDYYYY made any sense. To someone who uses MMDDYYYY daily, they could think of YYYYMMDD as "Its like the usual but backwards" and now you have a group of people reading it as YYYYDDMM.
You could convince a group of people to use YYYYDDMM, but what I mean is nobody currently uses it. So at this moment of time YYYYMMDD is intuitive, and has a miniscule chance of being mixed up like DDMMYYYY and MMDDYYYY (because a large number of people use these formats).
Please don't convince Americans to use YYYYDDMM lol. :-)
