SF has an especially bad problem with shoplifting and robberies, but it's happening in a lot of other places too.
A friend who worked in a senior position at a FAANG had his phone stolen while it was unlocked, and within minutes they had disabled Find My. They had full access to his work accounts + private data + identity documents for several hours, so he has to get everything replaced. Crazy that for most folks the most valuable assets isn't the device itself but the information on it, and criminals have started to realize that.