Manager must learn Spanish to speak to employees

I won't mention names, but I personally know a Caucasian female native-born U.S. citizen who is a manager at a restaurant in San Diego, CA. Yes, that's in the USA. Well, not surprisingly, there are some non-citizen employees there who do not speak English. The manager's boss told her that she needs to learn Spanish in order to communicate with the other employees. So she bought some books to teach herself Spanish.