As a member of the Generation X demographic, I'm saddened to admit that paying with plastic (whether debit or credit card) has superseded paying with real money.
How will this investment affect at the individual level, based on being disaggregated by various demographics (race and ethnicity, gender, age, disability, income) and locations (inner city, inner ring suburbs, suburbs, exurbs), miles traveled, travel time, accessibility to transit, and car ownership?.