I have been alive for countless years and have watched many parents go through the “Why?” phase with their children. The children expect the parents to know all and at some point or other the parent's knowledge is exhausted and they say “Because that's how it is, that's why.” I should not have had this problem, being one of the creators after all. Unfortunately often our choices for things had been driven by aesthetics, not any scientific reason. Science is a human creation, an amazing one to be sure but honestly, genetics wasn't something we were acquainted with. So when Lillith would ask me why a flower was purple, or why sand at the beach was completely different in appearance and texture than dirt in the forest quite often I was reduced to saying “Well, because we thought it looked better that way.” "
Chapter 5 of Testament of An Archangel