Comment by justsomehnguy

This was already tried literally decades ago[0].

Now answer some questions:

what should happen when some objectionable people would access a site what doesn't have anything in the site metadata?

what should happen when some very objectionable people would access a site what do have all the required data in the site metadata and they would still complain?

Also you are clearly missing the usual "think about the children" drivel.

[0] eg https://www.isumsoft.com/internet/enable-content-advisor-in-...