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"i think i'm beginning to understand why boo radley's stayed shut up in the house all this because he want to stay inside."- what does jem mean by this and how as he come to this realization?

from to kill a mockingbird

So this passage in question is chapter 23 pg 304

Leading into what he says, jem explains to scout that there are four kinds of folks, which leads them to talk about their family's background leading to the conversation of learning how to read and write where scout goes on and tells him "no everybody's gotta learn, nobody's born knowin'. That walter's as smart as he can be, he just gets held back sometimes because he has to stay out and help his daddy. Nothin's wrong with him. Naw, jem, i think there's just one kind of folks. Folks."

Which leads us to Jem saying "thats what i thought, too when i was your age. If there's just one kind of folks, why can't they get along with each other? if they're all alike, why do they go out of their way to despise each other? Scout, I think I'm beginning to understand why Boo Radley's stayed shut up in the house all this time...its because he want to stay inside."

My interapation of this is that Jem means the he thought that the trial wasn't equal. The thought that the world isn’t as good as he thought and believed. The Tom Robinson’s trial made it clear which made Jem come upon this relization. That the staying inside maybe meant he (boo radley) maybe was scared it may not be a very pleasant world, not fair and judgemental towards him

Hope this helps :)

a. "to practice" is the best phrase to complete the sentence.

explanation:

during the summer, she likes to practice her soccer skills so that she is ready to play in the fall.

(note that : all the other options "the practicing of", "practice for" and "to do a practice on" are inappropriate as they make the sentence grammatically incorrect.)

theresa is going to be my girl this year, he promised himself as he left the gym full of students in his new fall clothes.