I tend to agree with what you say.
An educated society with a decent government and infrastructure will most likely be much more structured and prepared to handle major calamities brought about by man or what we see in nature. I believe there will be people who will try and take advantage of the situation and profit from it by whatever means, but for the most part, in an organized society, I think the need to pack up and leave at a moments notice would be minimal. Does not mean one should not prepare for it to some extent, but short of the announcement of an asteroid headed for LA in the next 24 hours, it is kind of unlikely that people will need to pick up and run. It is obviously not the same in other countries of the world, but you plan accordingly depending upon your political, social and economic situation/stability.

The question might be what would you be fleeing from. Fires like in Oakland or Malibu, an earthquake? That is one scenario that needs to be taken into consideration more so than a total immediate breakdown in society.
Living next to a chemical plant that could produce toxic fumes in the event of a major problem, 3 Mile Island; other issues you might need to plan for a quick egress from the castle and into the surrounding hills.
Planning within reason is one thing, worrying about planning for the total immediate colapse of our society without some advanced warning (read weeks, months or years) is a terrible waste of creativity.
But, we all need to respond to what we each feel is most important for us to stay "prepared," to whatever degree.