FIGURE 15.9 A Narrowing Gap The digital age gap was once especially apparent for social networking. Facebook, Twitter, Linkedln, online dating, and so on are populated by millions of 16- to 24-year-olds, with fewer participants in every older cohort. While the gap still exists, use of social media by those 65 and older is increasing at a rate greater than that of any other cohort and four times that of the average 60 percent compared to 15 percent.