Originally Posted by
MichaelColey
It's just bulkhead row seats that are held until the day of departure (or the 24-hour check-in time, I don't remember which). Exit row seats (as long as they aren't bulkhead also) are available all along.
I believe that only Preferreds have exit-row access prior to the 24-hour window, after which time anyone can book them (non-Preferreds pay a fee).
The woman who booked exit-row seats with her little kid likely knew that the daughter was too young.