When travelling with 2 adults and 1 child has anyone tried paying for 2 adult seats and choosing them so that there is 1 free seat between the 2 adults - will the airline have to automatically allocate that seat to a child?
Or is it better to pay to allocate that third seat to the child?
no
They can assign any seat they want…
Sometimes it is random, other times, it is deliberately away from the other seats in the group to force you to pay to select a seat in the first place.