I complete NUMEROUS hotel valet shops at high end hotels with pricey restaurants inside. I regularly go to the restaurant (by myself) and have an app or side dish while working.
These are some of the same restaurants that I shop with a guest for Coyle... I am not the only one by myself either. In Chicago I regularly see business travelers/ professionals eating alone.
With that said it's all about what the client wants, even if it doesn't make sense.