Working at the hospital is a vital job, keeping an important server running is a vital job and driving a mass transit bus is a vital job as well.
On the other hand keeping McDonald's open is not vital, it is just economically sensible.
How come it is illegal to keep them open during public holidays in much of Europe then? I find hospitals a tad more important.
I hear what you are saying. Gas stations are vital transitively from the vital jobs that require gas, such as ambulance services. But I could still rank them as less vital than the services themselves, enabling me to at least close some gas stations. Fast food would be far down the list because it is predictable and trivial to plan around.
It can take some real planning to figure out how to deal with that first week.