Did they tell you they were afraid, or is that your interpolation? Do you think your own life and motives could stand that kind of critique?

I do what I do because it makes my life better...materially, concretely, measurably better. I am a healthier person as a result. Rather like the reasons I get exercise and eat right. You could look at the latter especially and conclude that I stay on my diet because I'm afraid of becoming a diabetic. I can't necessarily refute that; all I can say is that 1) reasonable fear does not make me a weak or irrational person and 2) defying my fear and being free of my "crutch" of healthy eating would be a really unbelievably stupid reason for me to quit.

But I have said all this before.