Dear Zuckerberg, We're writing to urge you to cancel Instagram for children [pdf]
Why aren't parent ready to take responsibility? I have small kids and nephews, none of them get/will get smartphone till 13-15. Laptop, the 8 year old uses has a whitelist of apps/sites. If they need anything from Youtube, I'll download it and they play on VLC. Why should Zuckerbergs of the world be able to enter their world without supervision?