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A 2013 study at the Teacher Training College in Bilbao, Spain, showed that children have a deeper concern for following environmental rules (such as not carving names into trees or not stepping on flowers) than for following social rules (such as not picking your nose or being a messy eater). This could conceivably manifest in kids not only wanting to protect the natural world, but also being able to ignore stigmas — even in the kitchen — that would thwart conservation efforts.
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David George Gordon, author of The Eat-a-Bug Cookbook, believes that although "adults are skeptical [about eating bugs], kids are so receptive to trying them. Events like this are a great way to engage their parents."