Austen emphasizes gender stereotypes in this section by highlighting the different expectations of the Parker's sons versus daughters and emphasizing Mrs Parker's submissive nature through her decision to give up the garden in their old house and submit to her husband's love of Sanditon.

Here again, the notion isn’t to go beyond stereotypes but to replace one stereotype with another. http://www.theguardian.com/lifeandstyle/2014/nov/19/-sp-barbie-can-be-a-computer-engineer-but-only-with-help-of-a-man