People don’t like to admit that we are ants. We are valuable and important. Each one of us is unique and deserves a full, good, life. But we are also ants. We are susceptible to group think, mob behavior, and we tend to follow the scent trail most of the time. It’s not a bad thing. It’s tied to our evolutionary desire to be a part of a community; to fit in and blend in.
But it also means individuals are likely to do what keeps them alive. We are likely all bad in some way or another.
But as long as you aren’t, actively, willfully, or gleefully harming people, you’re probably ok.
I think you’re thinking of users’ ages not posters’ age. They don’t verify the age of people watching videos and they are publicly against that. I don’t know how they feel about validating the age of people in videos.