I just want to point out that theft can be violent. In England and Wales, burglary is considered to be a more severe crime if house was occupied, due to the psychological effects on the victims.
The famous 'phone-snatching' can hardly be considered non-violent either, given that it requires physical contact and is almost guaranteed to produce fear in the victim. (I don't personally know how it has been prosecuted - if at all - in the past though.)