Culturally ignorant...really? I highly doubt you know all the little grammar/date type things such as this that there are to know from Europe, it has nothing to do with being culturally ignorant, as memorizing how Europeans do little things like this would be, quite frankly, a waste of my memory as it would have very little use to me as an American.
I'm used to saying my birthday is May 26th, 1992, which is mm dd yyyy, not to mention, I had absolutely zero clue that this site was run by a European until after I signed up for it and started using the forums.