Got Your Number

[brogine]

I don’t know if this belongs here, or on this forum at all.
Howsomeverwise . . . .

I’ve seen our Western Arabic numerals used with all kinds (possibly literally ) of writing systems, Arabic, Chinese, other Asian, and lots of others. (Notices from Kaiser include contact information in lots of different languages, quite a few with unique writing systems.) I know about a few, but I assume they all have their own numerals.
And it’s not just phone numbers, which use is understandable as precluding confusion.

So (at long last) why come dat?