People (on the whole) aren't afraid of losing stuff. They're afraid of someone coming into their home or grabbing them on the street and things going south. If you somehow had a device which 100% guaranteed your personal safety (but somehow still allowed theft) then (for most people) most of these crimes would merely be an inconvenience/irritation on the same level as low level credit card fraud (where you lose no money but have to get a new card).
