Not sure if the folks or the TV producers framed the "single scenario" aspect. Personally, I am concerned about a domino effect of factors hitting in fairly rapid succession.

The weight & health issue struck me also. Then again, we see people every day who seem very out of shape for their careers or hobbies. The medically-retired truck driver in TN seemed to have a reasonable grasp (except for the cheesy militia get-up) regardless of his health.

Preparedness can be a family efort or hobby. We do not honestly know how healthy those families are. The whole thing can be handled like homesteading or scouting or like a cult.

Pets... I understand the emotional/psychological value of pets. Yes, small, "helpless" animals can be a hindrance, but can be very important to seniors or children. Allowances should be made.

The cult of TV... Well, if a person can be a professional reality TV personality...

Yeah, I've got some issues with the Houston gal (notice her boyfriend eschewed the show?). However, she was taking positive steps.