Interesting. Thinking more now about why I picked 2005, I'm trying to decide if someone with a kid born in 2000 fared any better. I suppose that those kids were already teenagers when smartphones reached 50% market penetration, and giving smartphones to kids became normalized, and the "pivot to video" happened (really turning "social networks" into "social media" in my mind). I'm not sure if that was better or worse for them.