What do you mean by "children's data"? What data? Suppose I'm 11, I'm not registered at Imgur, and I'm only browsing, what sort of vulnerable data they have to protect? Browser's user agent, IP address, screen resolution? Even if I'm registered, it's rather unlikely I will provide all my real details.

The "children's safety" argument is for voters who are technologically illiterate and don't have a tiniest idea how the internet works.