As a parent, you must tend to all your children’s needs. You may have your favorite but making it obvious will only increase the level of insecurity in your children. While you may have heard of sibling rivalry, which is prominent amongst kids with two or more brothers or sisters, knowingly or unknowingly, it can induce a lot of insecurity and jealousy in your kid. Not that it is a matter of grave concern, but it can sometimes disrupt the level of confidence in your kid. That said, here are the zodiac signs who make the most insecure sibling over those who are the least bothered.