I know I keep harping on this, but there's no time like the present
to start taking a first aid/CPR class at the Red Cross. But, let's
go a big step farther and take some EMT classes at a community
college. Those of you in the mil/LE can take Combat Life Saver
classes, etc. and end up with your own supplies.
Learn how to grow your own food and provide clean water. Just
doing that will keep you 75% ahead in the game.
I think there's way too much emphasis on "what kind of gun should
I have." And, unfortunately not much of a plan past that except
maybe a few weeks of food/water. Not much of a skill set that
works outside the 1st World either. What will happen in either a
sudden collapse (or a slow falling back to a 19th century lifestyle)
for these people who have a rifle, a lot of ammo, and no more food?
They may very well end up part of the problem.
Quite frankly, there may not be enough business for "Security Contractors"
in either scenario. Don't expect to show up at someone's farm after
the rioting, looting, pillaging, gang warfare, and marauding have long
since quieted down and sit on your butt all day with a rifle thinking
you're someone special because you rode out the whole thing safely
in a suburban safe-room. If you expect to eat, you'd better help
toil the soil.
But, here's a couple great jobs for former 1st Worlders who lack
low-tech skills in an economic regression: Septic Cleaner and
Water Hauler. You will always find <someone> who will pay you
to bucket out the sludge in their septic tank or haul fresh water in the
wheelbarrow. Preferably for health reasons, not on the same day!