I was a picky eater as a child, and both my biological sons were. I have changed as an adult, as has one of my two children. The other, still picky son now has a daughter who is a picky eater. Thus it comes as no surprise to me that being a picky eater may be have some genetic forces behind it. (H/T hbd*chick)
Naming it neophobia tied it in to another phenomenon I have thought about recently. I actively seek new experiences in general, my wife prefers familiarity. She was not a noted picky eater when young - she was a perfect child, and her mother largely backed her up on that. Yet she largely avoids new foods now. Despite the child/adult changeover in our family, I think there is something general to the neophobia. The picky granddaughter is especially reluctant to try new anythings - though my wife has had more success by letting her approach them at her own speed.
A concept that was largely unknown in my parenting.