That would make sense if there wasn't such a thing as a "follow" feature.

Everyone already sees different content

Are you going to bring your 3d printer into your university's exam hall to write your final?

Yes but NFTs are held in trust by you, not a 3rd party business. If you want to sell your NFT to a friend you can do that without brokering the exchange through a middleman who can/will charge a cut

high chance of causing long term and devastating effects on youth.

There is a substantial body of evidence proving alcohol is extremely bad for brain development

https://scholar.google.com/...

So brave

How do I know you haven't made 10 copies of that same certificate and sold 9 to other people?

If it was an NFT I could see you issued 9 other copies of it before I was approached with the sale. Any other way I either have to place blind trust in you or rely on a 3rd party to handle the issuance/transaction