What I don't see discussed in here is why we should care what phone teens, particularly, have. Teen preferences are largely built on what's popular right now;

What I don't see discussed in here is why we should care what phone teens, particularly, have. Teen preferences are largely built on what's popular right now; it's not as though I'm still wearing untied high-tops and carrying a boom box. Do we have any evidence that this particular early preference carries on to adult life, when it's they who are making the purchase with money they have earned? Do we think teen technology preferences have influence on other age groups? In short: What's the point here?