Instead of being cheaper and safer, getting an online taxi can actually be dangerous for people with disabilities where a so-called "red zone" is in force.
There are significant challenges in making old cities like Rio more accessible, and there are missed opportunities around the Paralympics, but it's not all bad news.
In 2012, nearly one-third of voters with a disability had trouble voting. A 2002 law was supposed to fix this problem. New technology may have the answer at last.
If game producers get better at targeting older gamers, many effects of aging - social, cognitive and physical - could be reduced.
The European Union has played a key role in making buildings more accessible, homes more liveable and travel easier. But what would happen if the UK left?