I didn’t mean a guard and metal detector at the entrance of every store in the mall, but just at the entrance TO the mall. That certainly can’t cost that much. And, whatever the cost, every store in the mall, including the mall itself, could share the cost. There are usually dozens of shops in a mall, so if it was spread between them, the cost would be minimal.
1. You clearly do not know the difference between a mall and a strip mall.
2. Me and my gun, costs nothing and protects much better than any no gun policy, no matter how you choose to enforce it.