As the comment above clearly and repeatedly mentions, this has been the default for most of history. Previous to the modern digital age of endless location and habit tracking, people could move around without being easily detected except through tremednous, dedicated effort, and communications was easy to secure in simple ways. You're describing a completely new phenomenon that's very dangerous in many ways which go far beyond mere crime prevention, and apparently lamenting countermeasures against it as if they were what's creating a "terrifying" new state of criminals being able to move and communicate without easily being tracked.