There was indeed a caste system in Maycomb, but to my mind it worked this way: the older citizens, the present generation of people who had lived side by side for years and years, were utterly predictable to one another: they took for granted attitudes, character shadings, even gestures, as having been repeated in each generation and refined by time.
There are no more uses of "Indian caste system" in the book.
Show samples from other sources
It’s part of why the caste system is so unfair.
Kiera Cass -- The Elite
In my parents’ lifetimes alone we’ve seen the rebel forces within our country practically run into extinction, and though we still face challenges, the caste system no longer divides our people along imaginary lines.