The idea that stress analysis of vacation preparation, where packing is more stressful than checking documents, would be a simple component of the investigation into the timing of document verification lacks discernment regarding what really matters.
A missing or invalid document can ruin an entire trip, which is a greater impact asymmetry than forgetting your toothbrush.
My friend recently missed his flight to Argentina because of an expired passport; the stress related to the luggage was then completely insignificant.
We need to focus on what allows us to reach the peak of efficiency, not just on the "good enough," to ensure the trip takes place.