How terrible is the communication difficulty caused by cultural differences?

Speaking of illiteracy, it's really terrible. My cousin can't even write his own name. When he came into the factory for an interview, someone else helped him fill out the form. He asked me to help him send money home the other day. He doesn't know a word. I am more than 80 kilometers away from his work address. He said you must come and deliver it for me. He has been keeping his salary in his pocket for months. No one helped him deliver it. For cousin's sake,