This couple that was in the same train as me, left their seats to change the diaper of their little baby.
Not only did they go away from their luggage, but they left two phones and a large tablet visible and unattended for quite some time!
Kind of depends on where you are in other countries. If you’re in a crowded major metro area, stuff gets stolen. My office has three badged doors, and once a year someone ghosts in behind an employee and jacks a bunch of laptops.
The social safety net in many countries is shit, so people get desperate and try to make ends meet by selling your shit.