Why you need to know!
According to Wikipedia, "Bushcraft is a popular term for wilderness survival skills...
Bushcraft is about thriving in the natural environment, and the acquisition of the skills and knowledge to do so. Bushcraft skills include firecraft, tracking, hunting, fishing, shelter-building, navigation by natural means, the use of tools such as knives and axes, foraging, water sourcing, hand-carving wood, container construction from natural materials, and rope and twine-making, among others."
The term "buschraft" actually originated in Australia where they refer to their wilderness as bush. When you break it down, bush (meaning wilderness in the U.S.) and craft (meaning trade or skill) simply means wilderness skills. Bushcrafting would be putting those skills to use. Notice it isn't called "busheducation", but rather "bushcraft". Inferring that to simply be educated on what buscraft is and not putting into practice the actual skills in the wilderness, would not be considered bushcraft(ing).
What does bushcraft have to do with prepping?
Actually, prepping and buschraft are two separate things; kind of. They are separate, but yet they can intertwine. At some point, prepping may have to evolve into bushcraft(ing). For instance, in a SHTF (S#@t Hits The Fan) scenario you may not be able to stay in your home or even homestead that you spent so much time, energy, and money preparing for such an event. Somewhere along the line, most all preppers will need to utilize some bushcraft skills; such as firecraft, water sourcing, hunting, and fishing. I realize how hard it is to think of living in such a condition as to not have all of the resources we are accustomed to. But the possibility of such is very real. We need to be prepared for such.