as far as i see it civilisation was built with knifes and axes, before them we were stuck in caves, so i will definately be encouraging my daughter to sensibly use knives when the time comes, especially as i've been camping with people before of mid to late 20's, given them an axe to chop wood with assuming they know what to do, and then taking it of them before they even manage to split a single log, because they decided to hold the log at the top where there about to hit, or are sitting legs out front with the log between there knees, sometimes inexperiancve is dangerous regardless of age