Japan has a rapidly increasing elderly population- and many of them still want to drive.
There are no age limits for driver's licenses in Japan and they do not plan on having any restrictions, but rather tests to weed out bad drivers and incentives for people to give up their licenses. They hope it will lessen the 100k plus accidents attributed to the aging population.
The Tokyo government has recruited many businesses to offer incentives such as pizza, hotels and amusement park discounts in return for giving up your driver license.
The 102 year old interviewed for the article here, thinks it may just be about that time.