Caring for Dementia programme uses transport smart cards to find missing people
https://www.railwaygazette.com/metros/caring-for-dementia-programme-uses-transport-smart-cards-to-find-missing-people/63710.article
Hong Kong has already been in aging society. So, it must be convenient to detect missing people by using the ticketing system. But, one of the concerns I have is that it can be used as a detector for finding a person who is against government policy.
