Horse races and human nature

I'm watching the Democratic nomination process and am very intrigued. The two remaining candidates are so close that the nomination might be decided at the convention. The party has a defined process to handle this but I keep hearing people who say they want it decided before then; I ask 'why'? Is it because their candidate is ahead by a nose and they don't want it to go to a photo finish? What about all these states that have their nomination contest late on the calendar? What if the nomination came down to the last State? Are they not important enough to be the deciding factor? Are we so impatient that we have to have a decision at the earliest possible moment? Are we so allergic to uncertainty that we'll short circuit the process just to have an answer? Does uncertainty gnaw at us until we crave relief however painful? The Democrats sometime sound like a wild animal caught in a trap. Not knowing when they'll be let out makes them anxious and nervous, searching for any escape. At some point they become willing to painfully chew off their own leg and be free rather than remain in that state of uncertainty.

Maybe this reveals something deeper about human nature; that we'd rather have certainty even if unfairly determined.