[tangental]

"Think of the children" is used to pre-emptively attack any opposition to what is being proposed, i.e. "you are against this? you don't care about children?". It is despised by privacy advocates and I wouldn't support any group who used a tactic like that.

[formerly_proven]

Kids' privacy seem like a very valid use-case for that. Because kids and adults are not necessarily easy to distinguish, bingo bango bongo, privacy for everyone by default.