zahavasdad-
agreed about force-feeding, and training them to hate shabbos.
however, sometimes kids are real fussy eaters and are scared to try new foods, with odd textures and tastes, hence the difficulty in getting kids to eat vegetables.
we told our kids whoever eats egg salad with matzah, and some of the chulent will get dessert, if not- no dessert, leaving the option totally in their hands. all they had to have is a little itsy bitsy portion. they ALL had some and eventually they developed the taste amidst many months of moans and groans, but now love it and eat it with zest.