However, you still have to get past two things:
The fact is that if you tell a kid something is "good for them", they'll starve before they eat it.
If they give in and try it, the rest will be howling "Eeewwwwww!" or noises to that effect, and they'll likely not eat any more.
Pity to end up with that much food in the trash, but that is a predictable result.
Few will get any epicurean exposure at home beyond a new flavor of Chef Boy-ar-dee... and the unfamiliar rarely stands a chance.
One more thing: Kids and adults have different tastes insofar as what to eat, and kids have different nutritional needs. They are still building their bodies and as such will crave different foods at different times in that development. Adults are maintaining an existing structure, and they crave different foods.
I forget people don’t necessarily know where I’m coming from. I’m late 40s and was raised by a grandma who was born in 1902. She let me eat a certain amount of junk food (she’d raised 6 kids already, so she understood the young mind.) But we had at least two meals a day of the “Sit down as a family and you’ll eat what I put in front of you” variety. So I do think a certain amount of motherly coercion is acceptable, or kids will live on pure junk. Unfortunately, the population I’m tending to in inner-city Los Angeles either has parents too young or too indulgent to crack the whip when necessary, or the parents are all at work and the kids are raising themselves on a diet of Hot Cheetos and Youtube videos.