Are you absolutely sure that low prices wouldn't be more important to low income families? It seems like low prices-low income is a better match than slightly h

Are you absolutely sure that low prices wouldn't be more important to low income families? It seems like low prices-low income is a better match than slightly high prices-low income. My understanding of the situation was that low income shoppers are typically extremely keen for a bargain and are quite happy to shop around. And on paper they can just pretend the price is higher than it really is if stability matters that much to their planning.