Snapchat’s appeal with teens was crucial. Teens, about to leave high school and enter the wider world, were quickly building networks that would serve as infrastructure for the rest of their lives. At that age, they were building new habits and amassing spending power without oversight from their parents, developing affinities for brands they’d have loyalty to for years. Facebook might have started with college students, but Zuckerberg knew it needed power among this younger cohort.
