The comments around the under 16 media ban seem to be missing a salient point.
In order to determine if a user is under 16, you need to determine that for every single user … including you!
This means that your personal data will be harvested in order to determine if you are over 16 or not.
Good luck with using AI. The training dataset will be polluted, and so will the data of individual accounts.
My TV is signed into YouTube as me, but all my kids use it to watch Minecraft videos. Google probably knows my age by now, and all this will get flagged as typical viewing for a millenial.