Reading about Neal Ford’s frustration when trying to explain Agile reminded me of this:
“The best way not to be unhappy is not to have a word for it.”
Douglas Adams, The Hitchhiker’s Guide to the Galaxy
I guess if the only thing you’ve ever experienced is Waterfall, the illusion of control that it gives can be comforting. Agile practices don’t do much good for illusions. So if brutal honesty isn’t your thing, you’re probably better off with the old way. Maybe it’ll work, maybe it’ll fail – but at least you’ll have the comfort of never quite knowing why.