In what major city did you grow up in where robberies don't exist or shoplifting isn't a thing?
I live in one of those cities mentioned and while it has its own problems like any place does, it's quite remarkable how safe it is. You'd have no problem walking alone down some shady alleys as long as you mind your own business.
Some numbers if you want them: https://www.californiacitynews.org/2018/10/what%E2%80%99s-ca... https://www.economist.com/united-states/2019/02/16/property-...
Also Tokyo seems pretty great, but I haven't lived there.