I don't know why they can't change their "family pre-board" policy to one adult per young child.
My son gets to preboard because of his peanut allergy. They let us on to pick our seats and wipe everything down. We had a party of six but they only let one adult accompany my son for the preboard.
I think that this type of policy would ensure that a child was not alone and could sit next to one adult. I guess it doesn't solve splitting up the whole family but that's the risk you take with Southwest.
Then what would my family do? leave my 7 and 9 yr old alone in line? I know they aren't "young" but in no way are they ready to wait inline alone. No thanks! We'll be driving next year anyway. As much as I liked the 2 hour ride there I can't justify the 1200$ to fly vs the 250$ or so to drive
