My BOB is good for 24 hrs. It will get me to other places where I can accumulate more supplies while on the march. My pack (if I have time to grab it) will get me through 7 days with the exception of water. I will have to stop and purify some water along the way.
The U.S. Gov't now states that everybody should keep at least 2 weeks or more of supplies on hand. What does this tell you?