In Utah and Arkansas social media sites with >100,000 users from that state now have to do 3rd party age verification for ALL users from that state.

There are all sorts of questions about how that might or might not apply to Nostr. But it's just one of many things that can trip Nostr up legally.

(For the record I think age verification is a horrible idea on many levels. But the laws exist, so you can't ignore them.)