Ok it's obvious I can't eat this... but what happens if I touch it?
Just watch for not shallowing accidentally any part of the plant, and wash your hands later from removing pollen traces
This is part of the problem with the plant. Zero warnings in a beautiful delicate wild flower. Wolfsbane is worse in that sense.
From Wikipedia
My bet would be that they mistoken it for something edible/medicinal and tried to make an antimosquito recipe. Children always take a quick bit of anything that their parents show them as interesting.