1) You can survive for weeks without food. Sure, you'll be hungry, but you can get by on water and a good sleep shedule. I know a guy who fasted for 40 days, and all he would ingest was a very limited amount of water, and he's still around today, thriving and healthy.
2) Never underestimate a Boy Scout. They have an innate ability/perception that most people don't have.
Some Girl Scouts are well prepared too!
More options for them and some girls do not choose the survival lessons.