There is no fast food gap--everyone likes it

Apparently, everyone likes fast food. "About 80 percent of those in the lowest 10 percent of income ate at least once at a fast-food restaurant, compared to about 85 percent of those who were ranked near the middle (40 to 50 percent) in terms of income. Of the richest 10 percent, about 75 percent reported eating at least one fast-food meal." Now what will the gap people write about? https://news.osu.edu/news/2017/05/04/eat-fast-food/