I am genuinely confused by this phrasing. Are you saying that there are many situations where children and adults are receiving menus for food but are not “eating out”?
There are alot of people who basically eat out every meal. That's why every time there is a snowstorm, the bread is always gone. Those people only know how to make sandwiches.
Well, except for eating out, I guess. And even then an adult sharing with a child is not that rare.