>>283600There are actually a lot of valid reasons to not shave in the woods, OP. Archaeologists typically don't shave at dig sites because of the risk of infection from god-knows-what bacteria that's been festering in a crypt for millennia.
If you seriously want to go all he-man with your shaving routine, you could pick up an old double-edge (DE in internet shorthand) razor, or a straight razor if you want to show off to your friends.
Neither is impossibly difficult to get the hang of, just go slow and read all the info out there. Badger and Blade is a pretty good place to start.
A straight-razor or DE razor blades might be nice to have in a pinch (having an extra cutting tool innawoods never hurts), but I'd leave the shaving brush at home. Those things have a habit of picking up bacteria if you don't air them properly.
TLDR: don't get microbes on your face that you don't want there.