On a bicycle you have the Highway Code (or equivalent) on your side, you are also able to go into pedestrian mode if need be. Therefore you do not have to stop for anyone or anything if you do not want to. There are softer targets than cyclists and softer cyclists than you. So long as you have your wits about you then there is no need to be apprehended when on a bicycle.
You can even change your route to avoid having to stop, e.g. at a junction. You can also change your pace without arousing suspicion. There is no need to use a 'car park' or other area targeted by thieves. With an unassuming but well locked bicycle you need not have your ride be a cause of concern, even if locked up in an area you do not know well. In some cities parking is so expensive that the loss of a bicycle seat or wheel is 'affordable' risk.
By sticking to the tin box you are part of the problem and not the solution. Cities need regular citizens walking about in them to feel safe.
I know what I am talking about. My response to this was to ride a bicycle and never be a pedestrian in that bit of town again. I also moved house, seeing my own blood on the pavement was a bit much!
On your bike!