The most useless are those who never change through the years.
It is not real work unless you would rather be doing something else.
You do have to change things as warfare changes.
My family truly believes they are better cooks than I am. They see me as Giada not as a celebrity chef. To them I'm just me - their granddaughter niece etc. and they're older and wiser. I like that because it keeps you grounded.