“If our stores sold only oat bran and toilet paper, many difficult choices would disappear, and life would be much better, and more equal for all.”
Your post infers that choosing toilet paper is simple. Choice of toilet paper is rather complex. There are a number of product features that are difficult to evaluate. Perhaps you envision a world with just one brand of toilet paper. I see many different brands of toilet paper when I visit a store.
Stores should sell this paper product. And oat bran. More choices than that is not something that I can handle in a responsible manner.