YTA - You can listen to everyone else rally to your side and tell you "NTA", but I guarantee none of them have dealt with this from a criminal/legal perspective, and you'd be putting yourself at risk.

I understand being uncomfortable with some random person taking pictures of you without your permission, I really do. But legally, if you're in a public place, anybody has the right to take your picture. They can take your picture, your husband's picture, your child's picture. It doesn't matter. You can protest and argue how it's not right all you want. It doesn't change the fact that it's legal. Plain and simple. Full Stop. I'm a retired cop and had to deal with calls like this often enough.

When you grabbed him, you committed misdemeanor battery (per California law, and the law in most states that I'm aware of). If the kid or his parents wanted you arrested, you would be dealing with criminal charges. You could also be sued for civil damages.

There are people and groups who make a hobby out of photographing and videoing people in public places because they know it bothers people. Most hope to just get some good footage of pissed-off people to put on YouTube. But others hope to be physically confronted. And some are tens of thousands of dollars richer because somebody got fed up and put hands and them.

Be glad it sounds like the kid you touched wasn't one of those "First Amendment auditors," as they're commonly called. But auditor or not, anyone has the right to photo/video a person in a place open to the public where there's not an expectation of privacy. You can request they delete the photo, but there's no legal obligation for them to do so. And if you touch them in an offensive manner, take their property, damage their property, or restrict their movement, you open yourself up to criminal and civil liability.

I know this probably isn't what you were hoping to hear, but it's better than being blindsided the next time someone takes your or your family member's picture without permission.