This hasn't been my experience with our twin toddlers and 5 year old. What they like is all over the place. We don't force or bribe them to eat anything - we put their options on their plate (usually around 4 things) and let them eat whatever they want. Everything they eat my wife and I eat, and we don't make things we don't like to eat.

Usually only around half of what we serve them will be eaten by all 3 kids. What they don't eat I generally eat for lunch the next day.

There are also some completely random habits. Take asparagus for example. One toddler won't eat the tips.