There's already a significant market for assistive GPS trackers. Most of them offer geofencing; some support two-way communication. One particularly ingenious c

There's already a significant market for assistive GPS trackers. Most of them offer geofencing; some support two-way communication. One particularly ingenious company has designed a pair of shoe insoles with GPS tracking. https://www.techsilver.co.uk/product-category/assistive-technology/gps-dementia-trackers-patients-elderly/ https://www.techsilver.co.uk/product-category/assistive-tech...