Each to their own but like I said it's when it comes down to the wire that you have to be 100% certain of the man at your back.The man who saves your life when theres plenty, may well be the one putting a bullet in your back if times get a little too rough.
The problem for inner cities is that the gangs would probably be in the strongest position at first but as things got tougher then they would turn on each other.Suburbs would face a different set of problems and I believe the only way is to head away from the main centres of population.