text: Since the percentage of car usage has gone down in America, so has the percentage of getting a license. There has been a large drop in 16-39 year olds getting a license, Mr. Sivak's research has found. Older people are also likely to retain their licenses as they age. Mr. Sivak and another man both have children of about the same age, 19 and 21, and live in busy cities where a car could be useful. Neither one of them has their licenses, even though they are interested, but they don't really see the need for one when they can use public transportation or car-pool with their friends. The article says that a study last year has also found that driving by young people decreased 23 percent between 2001 and 2009. Whether or not this changes as these young people grow older, these decreases in driving are proving that cars might just not be as important as they used to be.