You guys make really good points. However, you’re the exception rather then the rule. I know kids whose parents never cook so they just serve themselves to whatever is available in the cup-board or the fridge.
My mom always cooked meals for us and we were never allowed to leave the dinning table during the meal unless given permission. We also learned how to hold the silverware correctly. For mid-afternoon snacks we had fresh fruit or perhaps a chocolate croissant. And I ate everything also including horse steaks, fish eggs, goose liver and lamb’s brain (that was in France).