I tend to start them out with just little deviations from CW. I talk about einkorn wheat vs dwarf or I suggest whole foods instead of processed by mentioning the sodium content. Start them out with just baby steps and lead them toward primal one crumb at a time...if that makes sense. I had a co-worker mention to me that her weight loss efforts were not fruitful...she ate lots frozen dinners. I suggested she stop eating frozen dinners b/c the sodium was probably causing her to retain water (sodium is so demonized by CW that it was an easy sell) and get her "healthy grains" from rice and quinoa for a week and see how she felt. Guess what...she lost weight. Now she is more open to the idea that grains in general are bad for you and that whole foods are the way to go...but if I had hit her with everything all at once, I'd have lost her.
So I guess my advice is start off slow with one small thing. And if they dont bite...I would just quit trying to steer them the right way...they arent ready.
It's just another day in paradise
As you stumble to your bed
You'd give anything to silence
Those voices ringing in your head
You thought you could find happiness
Just over that green hill
You thought you would be satisfied
But you never will-
Learn to be still