You can walk someone to the gate, you just have to have a ticket.
Post 9/11 you could get a waiver from the ticket counter to escort someone thru security all the way to the gate. Dunno if that's a thing anymore, but I had them print out a paper and showed it at security several times in the mid 2000s.
alt Hacker News
Post 9/11 you could get a waiver from the ticket counter to escort someone thru security all the way to the gate. Dunno if that's a thing anymore, but I had them print out a paper and showed it at security several times in the mid 2000s.