Ofcourse it is eating several protein bars each day. Because you arent supposed to eat a lot of the bars unless u exercise you can also get sick.
They are planning for an emergency evacuation to get out of where ever they are, they need to be prepared and bring important items with them that they may need along the way.
My opinion/answer: I think being a teacher would be better, not only that you can get your own education back up, but you can also get other students education up too! But also being a farmer you can grow your own plants, and food.! But I think teachers would be better.