alt Hacker News> My 10 year old hates scary things, and she gets completely freaked out when they show scary movie previews. I would like to be able to block those for her.
The difference between this and the usual "parental control" mechanisms is that what you're describing here is something the child wants to cooperate with, voluntarily. In which case, you don't need a mechanism that makes it absolutely impossible; you need a mechanism for helping them not see things they don't want to see. That's something some adults also want (e.g. tools for preventing oneself going to Facebook, or going to TVTropes for too long).
Honestly, this is how I feel about all content for my kids. I am not trying to stop them from seeing something they really want to see. I am trying to stop them from seeing stuff they don’t want to see.
Now, sometimes my kids might not know they don’t want to see something, which is where my judgment comes in… but I don’t (or at least have not yet, anyway) feel the need to block my kids from watching things they want.
Now, I have spoken to my kids about some things they watch that I have issues with. I tell them why I think the content is problematic and why I would prefer they don’t watch it. But it is always a conversation rather than me just telling them they aren’t allowed.
I have been happy with how my kids have handled these conversations, and haven’t yet found the need to enforce specific rules yet. Even when they watch some things I don’t like, I have found it has made for really effective conversations about my values and what I hope their values are. Some of those topics are too abstract to have without having something tangible (like a YouTube video or channel) to center the conversation around.