C01GSX:HH-002:C01In the central middle-salary Johannesburg scenario, living in the family home and delaying a car purchase for three years creates R602,000 more modelled net capital at age 25, and R3.32 million more modelled wealth at age 60, than moving out and financing a car immediately. The age-60 figure holds when the gap is preserved on the manuscript's common post-25 path.high sensitivity