system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why are currency symbols written before the numbers when they're pronounced after?
gpt
It depends. Dollar sign (and similar) said to be written before so that one can't easily add digits to the front. And one can't add digits to the end because of thousand delimiters (and decimal point, yes). That is, changing $10,000 into $*9*10,0000 would be noticeable.

In Russia, for comparison, we don't use delimiters and separate currency sign (₽) was approved less than 5 years ago. Before that we went around writting *руб.* at the end, and for countering falsification we just additionally write the sum in words in parentheses: 10000.00 (ten thousand rubles zero kopeks).