Yes—small children frequently do pick their nose.
Okay, talking about small children, that’s not unheard of, but any child over 7 or 8 — ? Very rare to see, in my experience.
So do lots of adults. I am also amazed at how many people loudly blow their noses at the table in public. Im sorry but this is very disgusting, and while there are probably occasions where it cannot be helped I really doubt that is the case as often as I see and hear it. If you have to wipe your nose discretely that is one thing, but a full bore blow should be done in the bathroom. And, this is not small children I am talking about. Of course, I live in S. FL and I have never met a more oafish, ill mannered group of people in my life.