Jennifer asked what drives us to Science Fiction a few posts below. I thought that was a good enough question to wax philosophical.
It's the possibility that drives me. My folks took me to see Star Wars when it first came out in theaters (probably because they couldn't find a babysitter, LOL!) and Star Trek the Movie. We watched reruns of TOS whenever they came on. But my folks aren't big readers. In junior high, though, my friend Sarah (to whom I will always be in debt) introduced me to her older brother's dog-eared trilogy of Anne McCaffrey's Dragonriders of Pern series. That did it for me. From then on, I sucked up everything by McCaffrey, and whatever came through the library's SF shelves (most of it pulp SF from the seventies that I barely half-remember).
I loved the possibilities inherent in SF. What I remember of the pulp I devoured in junior high broke through boundaries for me. I read stories that mentioned things that were considered verboten in other literature (this I found out later) like alternative lifestyles, drug use, sexual and gender role shake-ups. SF took the aspects of society we take for granted and pulled them apart. Put them under a glass and examined the whys and whats both in and out of context. Thanks to SF, I learned to do the same. I broadened my horizons and gradually came to understand that even though everybody I knew in my suburban subdivision of Generica, USA was pretty much the same, there were still in existence other ways to be. That understanding has shaped my worldview, and extends deeply into every aspect of my life. And if I have the chance to open someone else's mind like that--then by the Gods, I'll jump at that chance.