According to Mr. Raymond, how will growing up change Scout and Dill? What will they gain and what will they lose as they grow older? Do you think he's right?

He is telling Scout that when they grow older, they will become desensitised to the unfairness displayed toward African Americans over time. They'll get used to it.

I can't really tell you what you think. So ... what do you think? Do you think he's right?