I was responding to Seeker's posts:
'And actually, I don't think I would check a 8 year old's seatbelt anyway.
and
'No- the parents shouldn't have checked with each other- the child was 8, not 4!'
and suggesting that someone who didn't check seatbelts were on or do a headcount might regret it afterwards. It takes so little time and effort and it has the potential to make such a huge difference, I see no reason to stand on principle and not do it, because of the age of a child, for instance, or because a child should know better, etc.