That concept surprised me since I never heard it from any other source. The use of animal products for food and other uses is a, if not, the proper use for animals in the universe. That is, inanimate material such as rocks, air, and the like feed the plant kingdom. The plants feed animals. And following through, the animals feed speaking creatures, Man.
Man seeks attachment to the spiritual realms.
Of course, for Jews this means Torah. Other writers to Mail-Jewish have discussed the Halacha involved in the issue of using animals. I wanted to add to the discussion a Torah explanation of the mechanics of the world, which naturally accords with the Halacha. After all, we're talking about the malicious mischief of youngsters, not a sacred or symbolic act. It is also worth noting that such youngsters do not necessarily limit such mischief to a specific date at the end of October.