Your insights into the novel and into Scout's personality are very inspiring and perceptive and your answer, in the main, is written very well. I will just take a couple of sentences to look at, to see if we can improve them. Firstly, in your line :
'Jean Louside Finch (Scout) is teased for not fulfilling assumptions associated with being a girl.'
I might want to use either an alternative, or an additional, word - for example 'expectations.' The society around the young girl had little to go on but what they saw in front of them as communications were so basic back then and media was not universally available as it is today. So people grew up copying their role models (parents,teachers,townsfolk) and just copied what they did, expecting others to do the same. In this case their expectations have been unusually challenged by Scout who has not fulfilled them so far. Yes, they have 'assumed' she will be no different to any other young girl growing up to follow in her Mom's footsteps. She is different as she is being brought up by a single male parent, with a helper taking a secondary role.
I would also use the word 'instilled' instead of 'entrenched' as we are talking about eduction here which deals with the mind. It would be acceptable to say however, that certain views had 'become entrenched.'