If you were raised in a unique household situation, such as with only one parent, or consisting of a certain number of siblings, you might make note of that. ^_^
I have yet to decide how I feel about this, as this idea just occurred to me a moment ago.
I should add that this community may or may not stray horribly from its designated "SP" topic, so if that's your sole interest, you may not be satisfied with what we end up discussing here. ^_^; Feel free to ask questions and/or start up a new topic any time.