"Siblings are peers that happen to be related to you"

This quote from Laurence Steinberg, a psychology professor at Temple University in Philadelphia, holds close to me, and to others I'm sure. If you have siblings, it's highly likely that most of your childhood memories are not kept uniquely to you. Most of my childhood memories include my brother in them. As kids, we all grow up together and of course influence each other for the better--or worse. A came upon an old article in USA Today that proposes merely having an older sibling can be a bad influence.

Not sure if I agree being an older sibling myself.