I was reading this entire thread looking to see if OP ever replied... I skipped starting at page 19 and never saw a reply. Anyone know?
I just wanted to add that we flew to WDW last year as a family of 4 for the first time... DH, me, DD (age 2, almost 3) and DS (age 6). DH & I have taken a few trips together, but honestly, we've only flown maybe half a dozen times in the past 15 years. So we're not completely inexperienced, but we're not well seasoned, either. This being a big trip (for us), I was very anxious to get us on a very specific flight. I booked our tickets in Nov 2015 for our Apr 2016 trip, through Expedia. I didn't even realize I was not given an option to select my seats at the time of purchase, I was just excited to have bought the tickets. It wasn't until about a week before our trip that I realized I didn't know our exact seats. I logged in online to view availability and my heart sunk; there weren't even any double seats anywhere, let alone 4 seats in close proximity. I contacted Delta and they said we'd have to make our own arrangements with other passengers. I was frustrated, because I'd bought my tickets 6 months ago, and didn't have any idea that I would need to go through Delta to book specific seats. It just never dawned on me. Fortunately, we were able to swap with other people so that at least I could sit with my DD. (and she was a handful, if no one had switched I think they would've ended up calling for an emergency landing, hahaha.) On the trip home we had to do something similar, although the guy my DH asked to switch with said he couldn't "legally" do it at first because they'd never allow 1 adult with 2 children. (WTH does he think single parents traveling with kids do?)
I know better now, and next time I will do better, but not everyone is well versed on the ever evolving rules of travel. If I had paid extra for my seat, I would be hesitant to switch as well. Not saying there's no circumstance where I could see myself switching, but I would not expect someone to do it just because. Honestly though it's more for their comfort than mine, as even *I* didn't want to sit next to my kid, lol. Fortunately she's ... matured... a bit... since then.