"Most survival situations last from 3 to 5 days".
Five days without food? Not if I can help it. And what happens if the situation goes beyond the 5 day mark?

My survival kit is tailored to do two things:
1) Stabilise the immediate situation. Thus giving me time to think, plan, reconnotre the surrounding area.
2) Provide me with tool's that maximise my ability to return.
Many people assume that they will be rescued in 1 to 5 days. Perhaps they will be, or perhaps not. How long will they search for you? Will you be written off as missing, presumed lost? Will conditions allow for a search?
I decided a long time ago that I would use the first 24hrs to provide myself with shelter etc. After that I start looking for food and materials in earnest. The quicker you start, the greater chance you have of keeping body and soul together.