Hmm, let’s see…
A LOT of new videos get posted to YouTube every day. Assuming you’re using an AI-based parental control, AI isn’t perfect. It’s gonna block some appropriate content, and it’s gonna allow some inappropriate content. If you want the safest video platform for kids, you have to build it yourself. Also, blocking keywords is not very effective because some legitimately appropriate stuff has keywords that are usually blocked, and also, people can just spell it an alternative way and it won’t get blocked.