Wow, I was recently in an airport bathroom where a young boy absolutely refused to wash his hands. His father was extremely patient and said that he needed to wash his hands. The boy was near tears saying that they would miss their plane. It was all a really strange and illogical situation. Until I read your sentence. I don't know if this is why the boy wouldn't wash his hands, but it makes me realize that sometimes kids have reasons for what they say or do, even if they can't explain it. Reminds me of the hand licking incident: https://news.ycombinator.com/item?id=18842009
I thought I had read all about the hand licking incident and learned not to make presumptions about kids. Today, I realize that the lesson hasn't really been ingrained into me yet.