I was an incredibly fussy eater as a child but don't consider myself to be one now BUT a lot of the things I didn't like as a child I still don't like - slabs of chewy meat (like steak, chops, boiled bacon), overdone veg, bland food served without sauce or gravy, etc
One of the reasons I eat well now is that the choice of food in shops and restaurants is so much better and not the boring meat and two veg of my childhood. My eating improved when I left home and shared a house with friends and got to try different things (plus was probably hungrier!)
Not being nasty, but I don't think my mother's cooking skills were not up to much plus she had to cater for elderly relatives who were conservative in their tastes.
I would never try to force a child to eat something they didn't like as I can remember feeling physically sick as I tried to eat certain things as a child but I do think many children are neophobes - we have finally got ds1 to start trying more things and he has surprised himself by finding that he actually likes some of them!