May be a problem with the seat originally for the 18-year old son. They did pay for it.
I think Delta might have assumed they could get the seat, then got their backs up when challenged.
I believe this is still delta’s fault. People arrive at the airport and check in. THEY GO THROUGH SECURITY WITH ID. Their older son was not there. So instead of Teen Q. Jones (over 18 with DL) they went through with Toddler Q. Jones (no ID). Hello?? TSA paying attention? They also appear to have told the gate about the switch. AIRLINES HAVE TO CLEAR DISCREPANCIES UP BEFORE LOADING PASSENGERS. There is no problem if they had turned this child away as not being on the manifest at the gate.
And havin flown with kids and toddlers, it is insane to expect people to fly with large tots on their laps. It is proven unsafe. And the family had paid for a seat. Once seated, they need to leave passengers alone unles their behavior is risky. This fam gets the cash too. How stupid are these airlines? I don’t want to trust them with my life any more.
Would there be a boarding pass issued for the seat bearing the infants name?