To today's kids who are addicted to video games, death is a thrust of a sword or a barrage of machine gun fire, accompanied by appropriately dangerous sound effects.
Compare that violent but two-dimensional, sterile death to watching a hawk swoop down to snatch a field mouse in his claws, glide to a safe place and crunch the squealing mouse, devouring it bit by bit.
Grandparents are an excellent resource for getting kids outdoors.