This question already has an answer here:
This is a question for my niece she is a supervisor in a chain restaurant, all the other waiters have English as their second language and all have the same first language.
Their English is very good and they can all easily converse in English.
Her problem is that they all speak their first language unless actually speaking directly to her or a customer.
This means that she has no idea what any of the people she supervises are talking about all day, unless she asks them a direct question.
- is she allowed to do anything about this, or is trying to do anything racial discrimination?
- if she is what can she do?
Editing to add she lives and works in England. (This is relative to the possible duplicates where the person had moved abroad and didn't speak the local language. She would like them to speak the local language.)