how is gender perceived in chapter 14

I think this is dealt more with in chapter 13 than 14. Aunt Alexandra begins trying to form Scout into a proper Southern girl, and meets with much opposition. She has a strong idea of what Finch women should be like, based upon years of family tradition, and tries to impose gender specific stereotypes on Scout. In this way, Scout is also a victim of this old-fashioned system for judging individuals in terms of gender. Aunt Alexandra tries to mold her into the image of Southern femininity: she gets a clear taste of what it is like to be held up to a stereotyped identity rather than being allowed to simply be herself.