Answer:
Aunt Alexandra's ideas of the proper way to handle maids, family breeding, domestic help, gossip , dressing and a gracious hostess at teas and family gatherings makes her fit into the "world of maycomb".
Explanation:
Aunt Alexandra does not fit into the world of Jem and Scout where their is little gossip, sports, outdoor activities like running etc, much physical contacts, social difference is not of crucial importance unlike in the world of maycomb.
Scout likes to dress in overall, hang out with Jem and acts like tomboy but Aunt Alexandra was not brought up that way. she grew up wearing dresses, attending tea parties and behaved in a way the society accepts. This statement by scout about Alexandra fitting into the world of maycomb shows that their is a generational gap in education, communication as well as understanding. They were brought up differently, therefore their opinions differ. Aunt Alexandra tries to teach scout what she knows about being socially accepted in a society which differs from how Scout believes it to be.