This feels like a worse thing to me. “You can sell this thing to people, but only people who have done some other sort of on chain transaction” opens the door for a huge mess.
“You can sell to people who aren’t a member of a union.”
“You can sell to people who never donated money to the ACLU.”
“You can sell to people who don’t own a gun.”
Is that the direction we really want?
The problem is that you need to link what's checked at the door with the online trail. If you only allowed people holding the band's CD to enter, that'd definitely work but it's just turning a different physical object into the ticket.
You could try to have a trusted third party verify ID and only allow registered accounts to participate in the resale market (Ticketmaster sells this service) but at that point the blockchain is, as usual, not adding anything other than overhead because the trust depends on that third-party and the venue's staff checking ID at the door (otherwise you'd find people on Craigslist paying people to register, get their ID checked, and letting the scalpers use their account).
I'm not sure I understand that.
You could tie it to something within a smaller group (e.g. tickets can only be transferred to people who have bought the bands album, or only to verified accounts that the vendor approves). I would also be surprised if there wasn't a ZK way of doing some kind of KYC like check that you are able to prove you have ID and tie that to an account _without_ making the link between the two public.