Most cities aren't very age-friendly according to this article. But they can be.
"Despite the clear trend toward an older, more urban population, most experts agree little is being done to make cities more age-friendly. Some of the necessary changes will be challenging. It won't be easy or cheap to provide more public transportation or to build more affordable and accessible housing for seniors who are on fixed incomes and are less mobile.
But there are steps cities can take to make a place more attractive to the elderly without costing an arm and a leg. Take crosswalks. By adding more time, cities can turn what seem like fast dashes for some into less stressful pedestrian crossings. If lengthening crosswalk time might trip up traffic patterns, the use of pedestrian islands at major intersections could be another solution to this small but nagging problem."