Harsh? Yes, but it's definitely true. Just because you "spent 22 hours in labor" with said child or "still financially support them" doesn't give you the right to share pictures of them with the world after they specifically asked you not to. If the tables were turned and your kids were posting unapproved photos of you on the internet, I have a hunch most parents wouldn't be so laid-back with the roles reversed.
And I'm not saying that your children should run your household by any means. Hold strong on all matters in terms of bedtimes, sleepover rules, and groundings. But if we want to raise independent, confident kids, we need to let them decide on their own whether they even want a social media presence at all because — spoiler alert — not everyone does.