Yes it is I go out learn the methods of to day survival learning what work a skill some day I might need to keep a live in the past shinobi or ninja took this live learning skill on there mission because life was hard back then they had live off the land fore week at time or months.
Each skill have purples reading the trails the startsing fire water hunting learn herbs what plaint was eatable all this was part of their to learn and master these skills.
