Many seniors are unable to drive due to medication or because their eyesight starts going to a point where they are unable to renew their licenses.  Some estimates are as high as one in five seniors being unable to drive themselves.  Many of these seniors are cut off by not being able to drive and end up being forced to stay at home because of a lack of transportation. This in turn can have knock-on effects, like missing medical appointments, being unable to shop for groceries, or missing social events.