"Elder siblings / First child teens play a pivotal role in bringing the rest of the household (parents and younger siblings) to Instagram."

"Elder siblings / First child teens play a pivotal role in bringing the rest of the household (parents and younger siblings) to Instagram." "Tweens rely on their older sibling to create and set up their account, and seek their guidance on a username, profile photo, which accounts to Follow, how to use and think about each surface, and what/ when to comment."