That being said, it's hard to really regulate this. When someone has a baby, they usually share a photo in a public manner of the entire family. It's hard to argue that parents shouldn't be able to share any pictures of their family in a public manner. It also would then prevent journalists or anyone for that matter, from taking pictures in public spaces that contained any minors... which starts to get absurd.
Hopefully my kids will appreciate that we never posted pictures of them publicly on social media (only shared privately within immediate family). At the very least, it's one less thing they'll have to worry about as they grow up.