I tend to think that there's some business opportunity here, especially for tech companies (although they might not be entirely a private sector). I've seen num

I tend to think that there's some business opportunity here, especially for tech companies (although they might not be entirely a private sector). I've seen numerous companies who are specialized in surveillance and communication for the elderly. They are not yet widespread due to technical and privacy concerns, but I'd be excited to see more development in this area in future.