I think the OP (haiyang kang) already indicated that he finds it quite unlikely that anybody would possibly want to enter that.
Who's talking about *entering* it into the program at a keyboard directly, though? Input to a program can come from all kinds of crazy sources. Just because it wasn't typed by the person at the keyboard using this program doesn't stop it being input to the program.
I think haiyang kang claimed exactly that - it won't ever be input to a program. I trust him on that - and so should you, unless you have sufficient experience with the Chinese language and writing system.
Note that I'm not saying this is common. Nor am I saying it's a desirable situation. I'm saying it is a feasible use case, to be dismissed only if there is strong evidence that it's not used by existing Python code.
And indeed, for the Chinese numerals, we have such strong evidence.