Somebody on our local nextdoor.com forum wanted to have some fun, I guess, or just test the neighborhood, and posted a survey: Should schools in America teach Arabic numerals as part of the curriculum? answers: Yes! No! No opinion.
I know it is hard to believe (especially since our school district, both Elementary and HS, are known for providing excellent education), but … at the time I checked, about 20% responded “No!” some with the comments “we are in America”, and 9% had “no opinion”.
And they were not joking!!!(It was clear from the subsequent comments). The post is already removed, so I do not know the final count 🙂