Before verified accounts kids were “conversing” with me online, one went missing
twitter.com
twitter.com
But if the one who benefits from checkmarks is Twitter, why would users pay for them? It's a backwards proposition.
It benefits Stephen King to have a way to show that he is the real Stephen King. It also benefits all other users to be able to find the real Stephen King.
Now, on the other hand, for the millions of 'anonymous' users, being verified has no obvious benefit.
Similarly for journalists: they can add their twitter link on their author page. Or government officials and .gov sites. They all have trusted sites to use to authenticate.
But it's unclear on Twitter without the user doing work. The blue check / verified value accrues almost entirely to Twitter, and improves the user experience for Twitter readers.
It’s not like they are saying we need to verify kids accounts, or that doing so would in any way protect them from anything.