To answer this question, you'll really need to know a bit about my son.. He is an EXTREMELY stubborn nearly 3 year old little boy. I have several behavior problems with him that I have yet to find a solution to. He is very particular about what he will and will not eat, and nearly everything he will eat is not paleo at all. No matter how hungry he is, I can't get him to eat something if he doesn't like the look of it. And he throw tantrums when he doesn't get to eat what he wants. I am at my wits end with trying to get this kid to eat healthy food!
Everyone at the family meal eats the same thing. It is the way things used to be when I grew up and it is a simple fix. Parents just have to be disciplined to stick with it and listen to the whining. Eventually he will eat unless some major medical or psychological issue is present. Almost every parent goes through the same thing. I ate more than my fair share of foods I didn't want to as a kid. If you know any families who have very little money and are forced to eat the same because of cost, you will see kids eating what is provided.