Your points are valid, one must evaluate the pros, and cons of leaving any area if you have a well and supplies it would be best to stay put instead of trying to reach your more remote location. Quoting: SilverPatriot
You have consider different scenarios especially in the northeast do you have enough warm clothing, wool blankets and n alternative heat source and can you purify your water.
You must dismiss any thought of rescue from he government as that will not happen and if you willingly submit, you become a useless eating prisoner.
Another erroneous mindset is that you need tons of guns, which will only give away your position when slingshots, crossbows and pistol crossbows will better serve you.
Being in shape is important we have two large dogs that we place backpacks on and hike although our elderly St. Bernard only carries an empty backpack these days the Anatolian Shepherd is a formable guardian and watchdog.
Most importantly, the hungry hordes will not be able to think clearly and if you doubt this imagine that you have not had proper nutrition and water for just a couple days your judgment will be desperate and way off the mark.
Yes, besides the exposure issues, what you said about blood glucose levels (this is what causes hunger and desperation) is the key. I was recently reading about SERE (Survival, Evasion, Resistance, Escape) training in the military. While these are very disciplined and highly trained people, after two days of no food, they began to steal from their teammates.
Others ate things which made them sicker and got bad cases of diarrhea.They also burned up more calories searching than they were able to replenish.
The hunger outweighed the risk of stealing from each other, and while they learned to identify some plants and animals, many incorrectly indentified them or improperly cooked them. They were in effect very confused and weak. Had it lasted longer, people would have started to have major health issues.
Dehydration happens very fast and creates dizziness, weakness, and towards the end hallucinations. I doubt many people could cope well, particularly due to being docile to begin with and out of shape.