Currently, restaurants are facing the worst labor shortage in decades. Restaurants have been offering creative benefits and programs in order to hire enough labor. However, due to increased immigration enforcement, many restaurants are now having to let go of trusted employees due to their undocumented status. The restaurant industry does have a diverse workforce, which means that many laborers may not have appropriate documentation.
See "Hiring Is Very Hard for Restaurants These Days. Now They May Have to Fire.", David Yaffe-Bellany, The New York Times, August 23, 2019