When learning the order of adjectives in a sentence, I thought up a word "saSHcomp" standing for the "Size-Age-Shape-Color-Origin-Material-Purpose" order.
Later, I found out that there's a slightly different order where the shape of a noun comes before its age. So, both "an old round thing" and "a round old thing" are correct and the order of the adjectives depends on the variant of the English one's using, British or American.
My question is as follows:
Might the confusion of these orders influence negatively the results of English grammar level tests taken in Great Britain or in the USA?
Can the use of this or that order manifest, in one single sentence, the origin of the writer, British or American, or, to be more exact, where they lived when they came to school?
Do native English speakers themselves ever confuse this order in the writing?
What's the order of these two adjectives that is used in the English-speaking world beyond GB and the USA — especially in Canada, Australia, and South Africa?