In Japan, they are promoting programs using surveillance techniques to monitor those suffering from dementia. Security cameras, tracking devices, QR codes and so on could support or alert caregivers.
This gives many elderly a choice. Suddenly, they can „age in place“, instead of aging in a nursing home. That could significantly improve their quality of live.
Full story: https://www.nytimes.com/2022/02/02/business/japan-elderly-surveillance.html