How much money someone has affects the things that he does, thinks, and says. It impacts future dreams and the things that she hopes to accomplish.
For example, a person who grows up in a wealthy family has everything that she could ever possibly want. Nice clothes, a comfortable bed, good food and all the electronics that one could possibly want. He may attend a private school with other entitled children so never knows what it’s like to have class disrupted by unruly students or may have never witnessed a lunchtime brawl.
This character grows into an adult with distinct advantages in terms of status, education and outlook. He has experienced nothing but the best and desires to maintain that status.
Then consider the low income child who grows up in a tiny studio apartment with eight family members. Who is often hungry and wears ragged hand-me-down shoes and clothes. Who falls ill frequently or has to accompany non-English speaking relatives to appointments to act as translator and so misses great amounts of school.
Perhaps she moves around a lot, from one shelter to another, and so schools change weekly. Most shelters are in low income neighborhoods so she does not have access to modern technology in terms of computer labs, WiFi and calculators. School lunches are adequate, probably free, but not delicious. She knows of students who come to school high on drugs, who sell their bodies and who are bellicose.
Think about how these differing early lives affect how your character behaves in your story.
Your task is to decide into which socioeconomic group your character belongs. Then make a bullet-point list of the structures in this person’s life, beginning with the home environment. Consider size of the home, family living there, quality of food and clothes, and what possessions the character owns. Include on your list the things the character sees in his daily life, as he walks down the street, rides in a car or bus, goes into a store, eats at a soup kitchen or restaurant.
Once you have completed your list, write a short scene in which these elements come into play.
This is not an easy task.
Have fun with this one.