The notion of a person with a disability is slowly disappearing. Even the worst injury is no longer an obstacle to living a full life. People who cannot walk, can travel freely around the city, or even the globe, in a virtual space. Or, if they prefer, they can do it in real life too — using robotic wheelchairs.
A personal carrier can move around the city autonomously. And if the user starts feeling bad the device can immediately administer first-aid and transport the person to the nearest medical centre.