It's a real catch-22. A restaurant business, as others have mentioned, is usually very thin margins and closing for even a week could put some under. Even at 2 weeks and beyond, it was probably a complete game changer. At this stage and with the panic set in, I'm afraid that even if everything were declared open per usual, the traffic would be a fraction of what it was (not just because of job losses, but the fear of crowds of people). Still, all of it, too big for me to still comprehend.
You can see the fear, people don't want to go near people this damage is going to take years to undo for some / most so anything involving crowed places and especially food are screwed.

