Just wanted to say that this sort of interaction is important. I'm glad people question what they're taught and I'm glad that you have responded with a reasonab

Just wanted to say that this sort of interaction is important. I'm glad people question what they're taught and I'm glad that you have responded with a reasonable answer that explains the why behind this social norm. I think the reasoning behind social norms are really important to understand. Not only because they might help reinforce a positive behavior, but we might also come up with a better solution when we discuss it. Its possible that nose picking and similar behaviors by kids are important for helping build the immune system.