Not necessarily true! It's suspected that children between the age of around 2 to 8 have a natural aversion to vegetables, especially green ones. The theory behind it is that when we were cavemen then our children eating random green stuff because they associate it with food could have resulted in children accidentally poisoning themselves. Obviously this doesn't apply to most kids today but the instinct still remains! However, their initial reluctance is no excuse as it's been shown that if you keep presenting a child with food they don't like then more often than not they will eventually begin to enjoy it. Even adults should try things multiple times before deciding whether or not they like it!!