What is the point of a sack lunch - if any at all?

And to think the sack lunch was meant for the kiddos to eat while at school. It seems we can now grab and bag food from many different places yet the kiddos aren't eating them because even Sims parents believe breakfast is the most important meal of the day so the Sims kids don't get hungry enough to eat their sack lunches. That doesn't make much sense to me. But, then again, it makes perfect sense in EA logic. Throw in a new idea geared towards kids and the rest of us are running around hoarding leftovers to save a few Simoleans. And we have to send our Sims kids to school without breakfast so they will be hungry enough to eat the lunches a Sim mom or dad took the time to prepare. I'm confused. LOL