Final answer:
The decline in the percentage of young people with driver's licenses between 1983 and 2008 can be attributed to factors like moving to cities with better public transportation, cities offering more options than driving, and the rising cost of owning and maintaining a car.
Step-by-step explanation:
The trend of a decline in the percentage of 16- to 39-year-old people with driver's licenses between 1983 and 2008 can be attributed to several factors. The first reason is that more young adults are moving to large cities where they have access to public transportation systems like buses and trains, making car ownership less necessary. The second reason is that cities offer more options than just driving, such as ride-sharing services and bike-sharing programs. The third reason is that the economy has made cars more expensive to drive and maintain, with rising costs of gas, insurance, and maintenance. All of these factors contribute to the decline in the percentage of young people with driver's licenses.