How can Kitty's character be described in Pride and Prejudice?

Kitty Bennet is the fourth of the five Bennet sisters in
the novel Pride and Prejudice. She is seventeen years old, and two
years older than the youngest Bennet, Lydia.  It is interesting that Kitty is older than
Lydia and yet Lydia seems to control Kitty almost entirely.  One of the ways in which
Lydia leads over Kitty is in her interest in boys, particularly men in uniform. Lydia is
by far the most loose of all the sisters. She is also the most aggressive in terms of
man hunting, and the “silliest” as Mr. Bennet would agree with himself. Therefore, Kitty
is Lydia’s most faithful followers.

Since Lydia seems to be
the sister with the boldest personality, she overshadows Kitty. Kitty lacks the courage
and vivacity of Lydia, so instead of competing with her like most sisters would she
became her cohort and, perhaps, even used her as a way to attract boys.  Kitty is also
an enabler to Lydia and the one who keeps her secrets. This is why Kitty kept it to
herself that Lydia was planning on eloping with Wickham, and kept the secret even
knowing that Lydia’s elopement could affect her own reputation and the reputation of her
sisters.

Therefore, we could describe Kitty as co-dependent
of Lydia, as a follower, as sheepish, and as a weak character of a woman. We cannot say
she did anything extraordinary anywhere in the story, or that she even stood up for
herself at any point. Even Mary, the plainest and least likeable of the sisters, at some
point showed a voice and a role within the family. Kitty, however, falls short from
being a solid character and is more like a shadow of Lydia than anything
else.