I’m referring to those for whom the initial response to the flavor of most vegetables is disgust. I’m talking about the signal between your taste buds and your brain, which like all signals the body uses to communicate, has a processing delay.
It's a learned response. Sometimes children have strange food preferences. Eg. can't stand chunks in their food, some food seems foreign to them so they won't eat it, somebody won't eat pasta, others fruits or vegetables.
I've just this week read about some moms trying to reverse this in young children (in adults it's worse, but not impossible), the article was not in english, so i won't link it here.
Their solution was to change the disgust with play. Like you don't like pasta? Come here, you don't have to eat it, just try if it will stick to the window. The kid plays with it, and in time it may change his perception of the food enough to try a small bite, their timescale iirc was two weeks. They explained some unexplainable occurences with prenatal conditioning ... like mum ate something and then fell, and those two unrelated things got written into child's brain.
Anecdotal evidence - my son when very young was suspicious to some fruits and veggies also. My solution was to eat the vegetables & fruits while watching tv shows with him. I've eaten whole apple, and gave him very thin, see-through slices of apple to play with, to look through, to suck and to nibble on. In a week time he was eating regular pieces with me and loves the fruits now. Small/thin pieces were the key for us.
TLDR: don't force children to eat something, it will only strenghten the problem.