I sort of see your point, however we today still pich tents, cook, shoot and bomb in the army. What I was trying to get across is that why bother training something which will not benifit you that much compared to todays world. For example the army wont shell an enemy base with empty shells, they will use full ones which will do some damage. So why train in things like point sparing if they are not going to do the job properly when it needs to be done?