Industrial Estates: secure, terrified zones

I'm sure they were not always thus.  You can tell from the location and orientation of the high-security fences that the fences were not planned when the units were built.  What you see now are units that are terrified.  Scared of attack.  Entrenched. 

Life and the world was not always like this.  We were once open and relaxed. 

Is this progress?  I like and want progress but this just depresses me.

I know why they're scared and protective, I would be too.  But it's us that have made this happen.  Our society.