Why does Dill’s explanation of Jem’s state of dress almost get him in trouble? (to kill a mocking bird)

Which example from lorraine hansberry's a raisin in the sun demonstrates the idea of self-determination?

"ten from the sea to the sand he walks,to look in the soil, but not in the box''!

Aman lives on the twelfth floor of an apartment building. every morning he takes the elevator down to the lobby and leaves the building. in the evening, he gets into the elevator, and, if there is someone else in the elevator -- or if it was raining that day -- he goes back to his floor directly. otherwise, he goes to the tenth floor and walks up two flights of stairs to his apartment.