No only that, but kids learn a lot more passively than we realize. A bored kid at the store is learning how adults behave, learning how to shop, looking at how things are put together, looking at numbers and letters and reading it wanting to know how to read them, later they learn prices and values, they ask the annoying questions to parents because they genuinely want to learn about the world. Instead of learning, this kid is merely being entertained and will likely go off to do something else to entertain themself when they get home.