Elizabeth of Persuasion and Persuadable
is a surprisingly distinct character from both her sisters and her
father. Although she and Sir Walter are often grouped together as a
single entity, Sir Walter has a somewhat warmer personality.
The Elizabeth/Sir Walter pairing is understandable since Elizabeth is
not only Sir Walter's favorite but would have acted as Sir Walter's
hostess since her mother's death. This position would likely be far more
attractive to her than marrying "down" in any way.
Which brings us to to Elizabeth's state of singleness.
Statistics prior to 1850 are almost impossible to establish, even with
today's Internet: suffice it to say that Elizabeth's singleness is not
quite as unusual a state of affairs as costume dramas and Regency
romances suggest. Even in the 1950s--when every woman supposedly
married her high school sweetheart--approximately 8% of women and 9% of
men had never married at age 35. In a town of 10,000 women, that's 800
women, a substantial enough number.
Elizabeth's singleness still provokes comment--from Austen at least.
According to Austen, Elizabeth could marry if she wished, not due to her
pretty face (although she has one) but due to her rank and dowry.
Poets and writers throughout history have extolled the beautiful face,
figure and so on, but for most of history, marriage has almost always been
decided on factors such as parental approval, familiarity, occupation,
dowry, and--in the case of royalty--political necessity.
Hence, the odd little story of Anne of Cleves.
Anne of Cleves arrived in
England to be married to Henry VIII, only to be divorced from him about
six months later. The story goes that Henry was put off since she
wasn't as attractive as the portrait he'd commissioned. The Six Wives of Henry VIII
(1970) does an excellent job intimating that Anne--who was perfectly at
ease with herself--was more shocked by Henry than Henry by Anne (this
interpretation is supported by the historical record). She was 25; he
was almost 50; he was Henry VIII...she wasn't.
Henry was so offended by her obvious lack of interest, he divorced her
claiming the privilege of so many men in history that "it was the
woman's fault." (I highly recommend the Anne of Cleves episode for the
careful and intelligent politicking that goes on behind the scenes: Anne
manages to keep her head but Cromwell is doomed and knows it--he has
finally backed the wrong marriage.)
However, Austen's text makes clear that what Elizabeth thinks will happen and what Elizabeth wants to happen and what Elizabeth actually tries to make happen have almost no connection to each other: out of all of Austen's characters, Elizabeth Elliot appears to experience the most cognitive dissonance about her life.
Austen herself made the difficult choice not to marry, and she knew exactly what she was doing when she made that choice. But Elizabeth appears to have no idea that simply deciding that someone should value you and want to marry you is not altogether enormously effective if you then treat that person with utter indifference.
In comparison, Sir Walter and Anne and Mary, the youngest sister, all demonstrate a similar single-mindedness about relationships; in completely different ways, they are all gratified when someone pays them attention/shows an interest in them. For all his snobbery, Sir Walter leaps into instant friendship with anyone who likes him or flatters his ego. Although Anne is far more discerning and objective, she is touched when people like the Musgroves go out of their way to include her. And Mary spends all her time just trying to get people to notice her.
But Elizabeth takes all and any interest as her due. This is not the same as Elizabeth being indifferent to public opinion/making her own way in life. Elizabeth's dissonance is that she feels entitled to attention without ever wondering why she assumes that the people she doesn't pay attention to ought to pay attention to her.