why do countries such as South Korea and China have latin numbers and letters on their license plates when their language doesn’t use them?

Question

Edit: Latin letters and numbers might not be the right word. I meant letters such as AaBbCc and numbers such as 123.

In: 3829

Answer 1

Here in Thailand, it’s Thai letters and Western digits.

Thai digits are pretty rarely used, in general. And I’d guess the Arabic numerals are probably more legible from a distance.