Right here we go, I don't really like going on about the kids too much as it's not necessarily their fault, but some things I noticed.
Firstly, when Esme first wanted roller blades instead of roller skates Sarah said in that vlog that Esme already had a helmet. This meant that they didn't buy her one for Christmas as she had an old one to use, not sure what happened to her old one, but I'm assuming it was too small. To me, on Christmas Day, if you knew one of her main presents were the set of roller blades I would have either, bought one for her then, or brought her old one and hid it so she could actually use them whilst they were away. Not thinking ahead meant that she wouldn't be able to spend time on her new gift straight away, even though it was a Christmas present.
Secondly, this has been brought up, but there's an additional thing I've noticed. Isabelle was clearly upset at the prospect of losing her work, and it's 100% understandable that she would be. With the amount of times that computer has crashed and lost her work (it wasn't the first time when it happened in the vlog) you'd think that perhaps they'd let her use Chris' Macbook or perhaps buy her a cheap laptop for Christmas as a main present (yesterday in the vlog Sarah said how the Xbox was being set up for 'them' and not just Isabelle).
Still discussing Isabelle's work, if you pause the video at 17:20 (I'll add a screenshot if I can), you can actually see that this work that's about 15 pages or so long is just repeated on one page (the same paragraph is there
three times, not to mention the question should actually say "Elizabeth's" and not "Elizabeth". Also this wasn't the only example I found, probably a mistake, but not sure how it'd happen.
I did feel for Isabelle though, school until 4 then dance until God knows what time just to come home and do her homework! Did she actually eat? It was clear she didn't have the jacket potatoes.