Dave and Cody are incredible role models for my children. My youngest son loves to watch Dave's cringing face as he eats the bugs Cody picks up. And my oldest enjoys the survival tips and useful information they both share. Dave is an experienced woodsman, and trained by the US military, where he served for 8 years. There's not much of a better role model you can get than that. Cody is an experienced naturalist, and can and has survived on the bare minimum of resources. He is very educated on general sciences, and teaches much about physics, nutrition, etc in the show.
It is important to know that the show is exaggerated, and that people should not attempt these activities unless they are as experienced and trained as Dave or Cody. Other than that, it is very educational and enjoyable.