Can't leave a 3 YO on their own7ADF and 11ADF
I think this is the right answer. 9 and 11 YOs will be fine in the A's by themselves
Yup, perfect.
Actually, I don't think that arrangement works at all. While you may be OK leaving the big kids in A, realize that the parents will actually be on the other side of the divider of the kid they are "helping." If you had two rows near each other, that may be OK, but if kid in 7D needs help with restroom, parent in 7F needs to go all the way around. I found it quiet difficult to do anything across the divider, even feed. BTDT. If you don't want the 3 year old "alone," a better idea would be 6ADF and 7ADF (or 7ADF and 8ADF), with the 3 year old in let's say 7D, wife in 7F, husband in 6D (or 8D) and other child in 6F (or 8F). This way you have a parent *near* on one side, and *available to help* on the other side. Just my two cents.