did you ever had guests in your home? did you ever have them full day inside, and didn't give them a single thing to eat the whole time? (ie those magical 14 hours). well of course no, you're not an a__hole, right?

alternative - food stalls in airports serving specific food/packaging for flights. haven't seen a single one in those 30+ airports i ever visited.

Another issue - many foods are outright smelly and many can't stand some smells (ie -> puking) - imagine 300+ people eating their own stuff inside the plane, on 14 hours flight. ever experienced a strong smell of any airline food? thank god or whoever for that.

as for food courts, they are full of 'businesses' since those have that overpriced and usually seriously crappy food paid by employer as part of trip expenses. they have their place in airports, but definitely add chaos and size - why do I need to wade through countless restaurants and boutiques just to get from checkin to gate? that's cheap. they could be in some designated accessible 'shopping area' for example.

But these would efficiency in the airports, and that's usually not the name of the game these days.