See... and most countries that recognize a right to privacy even in public have found a way to let people film their kids, while still making it illegal to point a private surveillance camera onto a public area (be it from your window or a car).
There is a difference between taking a picture of your kid with someone in the background, and intentionally taking a picture of that person. And turns out that in practice, the law is able to distinguish those two even though technically they're quite similar.
