Kids often eat their nose pickings (bogies) primarily because they are curious and it's a convenient way to get rid of them.
Here's a breakdown of the reasons:
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Curiosity: Young children explore the world through their senses, including taste. Picking their nose and then eating the contents can be a part of this exploratory behavior.
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Convenience: When a child picks their nose, they might not have a tissue handy or be in a situation where disposing of the booger is easy or acceptable. Eating it becomes a quick and discreet solution.
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Habit: Like many behaviors, nose-picking and eating can become a habit, especially if it's done out of boredom or nervousness.
It's worth noting that while the thought of eating bogies might be unappealing, it is generally considered harmless. The belief that it might provide a dietary or medical advantage is unfounded. The diameter of our nostrils may have evolved to match our finger size, making nose-picking easier! However, encouraging children to use tissues and practice good hygiene is still recommended.