Why is most cereal inside a plastic bag inside a cardboard box, when it doesn’t seemingly need the cardboard box?

Question

Why is most cereal inside a plastic bag inside a cardboard box, when it doesn’t seemingly need the cardboard box?

In: 4464

Answer 1

Protects the cereal inside and marketing. Easy standing boxes with flashy graphics look better than a bunch of sacks laying all floppy on a shelf.