I believe children don't understand the concept of discomfort.
As adults we have a wide spectrum of existence: pain exists on one end and pleasure on the other, but the bulk of the middle is occupied by everyday blahness, or perhaps a bit of discomfort. Our pants are too tight, our skin is dry, the damn canker is back.
But kids live in a different spectrum. I think they really only have two states. "Okay" and "Not Okay". And almost everything is "okay". You think you're clever and bend down to the five year old who has his shoes on the wrong feet, and ask in a knowing voice, "Doesn't anything feel strange? Does anything feel wrong?" And the kid says, "Nope. It's all OK."
How do you argue with that?
And wet socks. And t-shirts in winter. And knit caps in summer. And shoes with no laces. As adults who need warm towels and fleece linings and heated seats, it all makes us cringe. But to a kid, it's all "Okay".
Want to know what's not "okay"? Pinching a kid's nose 7 times in an effort to get a booger out.
I think I should have read the signs after the 6th time, but I was really focused and I almost had it.