If you’re camping out in the woods, it’s could be quite a few times.

1. When you walk to the place where wood is available (especially if it’s far away)
2. When copping down the tree (This one is applicable if you’re camping in your own forest or you have the permission of the land owner.)
3. When dragging the tree to your camping site (if it’s far away)
4. When copping it to suitable pieces
5. When burning it.

I'm playing RDR2 right now and I took out a grizzly with a knife. Makes me think I could do it in real life too