Originally Posted by
ROCAT
Hate to break it to the people that are saying they will not switch, but yes you will or you will not fly. Delta cannot allow a toddler to fly unattended on a flight, so they will ask for volunteers first. If there are no takers they will move people around to either a new seat on the plane or if they refuse a seat in the terminal. They are not going to spend all day on this so if after asking a couple people with no luck they will just start moving you around.
FAR 121.11 a.2.i: No person may operate an airplane— Notwithstanding any other requirement of this chapter, occupy an approved child restraint system furnished by the certificate holder or one of the persons described in paragraph (b)(2)(i) of this section, provided: The child is accompanied by a parent, guardian, or attendant designated by the child's parent or guardian to attend to the safety of the child during the flight;
"Accompanied" (per UM rules, anyway) means "in the same cabin" not "in an adjacent seat".