Solution

Sophie comes from a household that is lower middle class. She fantasizes wildly and enjoys escape. She dreams about things she can't actually have. The store requires a lot of money, Jansie informs her. Sophie is aware of the family's financial situation. If I ever had money, she declares, "I'd purchase a boutique." Even young Derek recognizes her irrationality.
Geoff's line of work shows their socioeconomic status. He is a mechanic in training. He commutes daily to the distant side of the city for work. His clothing lacks any form. Her father isn't very sophisticated. He has labored breathing. At the table, he is dressed in a vest.
A sneaker belonging to tiny Derek is thrown from his chair onto the couch as he moans. In the same room where filthy laundry is stacked in a closet, there is a stove. The father of Sophie rides his bicycle to the bar. All of these facts reflect their lower-middle-class upbringing.