I heard on the TV that one adult can accompany an otherwise unaccompanied minor to the gate. That doesn't solve the problem on the other side.
My sixteen year old recently visited a friend. She is quite independent, so I asked her if she felt uncomfortable if I met her at baggage claim. With a look of alarm she insisted that I meet her at the gate, and this is before the 11th.
I hope something can be done. Otherwise, there will be a lot of disappointed kids, parents, grandparents, etc.