comment: >
  
  If you can't physically account for your kids and can't remember seeing them during an entire day, you probably have parenting issues. I come from a large extended family that vacations together so the idea that someone is forgotten because of large numbers doesn't add up to me. The most likely outcome is that the drivers of multiple vehicles assume someone is going with someone else, but that is resolved well before we get on a plane. It's also implied that Kevin gets picked on unfairly and his parents don't seem to do much to help (though it's been a while since I saw the film so I'm not sure.)
context: Not sure what, exactly, to do with this, but I would think that one of the main arguments here would have been that the father bears just as much responsibility as mom. Thus far, your entire rationale, and the rationale offered by everyone else, has only focused on whether MOM screwed up. Why? Why doesn't DAD bear any responsibility?
  And really, why not just call it a collective failure of the entire family? Kevin's uncles, aunts, cousins, siblings, not a single one of them noticed or spoke up about the fact that Kevin seems to be absent. Don't they bear at least some blame?
  But really, I don't get why we're only talking about mom here and not dad. If it's a parenting issue, he's just as much a parent as she is. >
  
  Ya tbh, a kid is missing for a whole day and none of that massive family realises? How isolated was he? I have an extended family in Pakistan and I can't imagine this happening to any one of us. You don't just forget a family member you've known and loved for years, exists >
  
  
  loved 
  
  I think this one only applies to the parents lol. >
  
  No? Cousins, aunts, uncles, grandparents? >
  
  Eh the only ones who ever seemed really worried about him were the parents and the one sister.