It's a meme created to make a point about raising the minimum wage.
It is not an actual real life example of some gal working in a restaurant.
But if you can't quite figure it out, I'll help you out.
No one is doing the work so the service in the restaurant suffers.
Or the place eventually closes because the owner can't absorb the higher labor costs associated with a mandated higher minimum wage.
Or whatever you want the answer to be because it is a frickin' meme.
It’s a stupid meme. Dumb.