just_annie,
I am not sure what can be gained from this poll but I will to offer my info, I am the oldest child in a family that was very strange. A little love was spread but mostly uncaring parents that had children because it was expected. I grew to be a Dom because it is in me, part of that may well have been caused by the lack of interest and attention as a child. But the guts to take control of any group I wanted to belong to may have been feed by that need to validate my personal worth. It though may just have be me listening to that steelly inner voice that told me I had plans that were better then the ones currently being used.
I stood toe to toe with others that had years and size on my and rarely found that I failed to prove my point and quietly took control of the group, and that continued to this day. I don't choose to be a Dominant it is just who I am, and it can be very tiring since no matter the problem people come to me for solutions and a plan of action.