Yes, but animals in the wild also manufacture what are sometimes quite complex structures, and they learn through experience as well. Is that natural or not? What I'm saying is that learning and habituation is itself a natural process. If you're saying that we should avoid habituation (ala Zen, or something similar), then that's another thing, but something like that is also a learned and trained process, so how would it be more "natural" than the other?
Perhaps we are working with different definitions of natural?
Perhaps mine is useful to me and yours is useful to you.
Not right or wrong, just different.