After seeing this pamphlet, would these guidelines seem reasonable?

The Jerry Brown Governor Moonbeam of California would prefer you give them the money since only criminals have guns and now only criminals have high capacity magazines including terrorist but if you live in Illinois New York Massachusetts or other states that are liberal but have strict gun laws God help you. But if you live in Idaho or Utah or other states that have concealed carry better make sure you kill the bad guy because the ACLU and the bad guy are going to try to sue you

I was visiting family in Cali and went to the BofA nearby to hit the ATM. Saw a van parked nearby in the lot with the side door open and a guy standing about 20 feet away from the ATM with a backpack with some wires coming out of his shirt sleeve. I pulled around and called 911 from the car. LAPD was there in force in about 3 minutes and collected the guy with the skimmer receiver, the guy in the van with the spotting scope, and that was it. When giving my statement, the officer said they were looking some time for these guys and were surprised I noticed and were less surprised I was exMIL and just nodded in an understanding manner when I told them I spent some time overseas. We tend to stick to our old observational habits.

This is good advice regardless of your carry status. If you're being cased for a robbery you probably will not get the chance to draw your weapon without precipitating violence. If you're just a little too paranoid, you risk drawing on an innocent and will get you into very hot water.
Remember that keeping a low profile is best. Also, you're carrying a weapon to protect life, not a few dollars. You should never draw your weapon in public unless there is no other way to prevent serious injury or death. Period.
You can only cry self-defense if you could reasonably be assumed to have been in fear of your life or the life of another. Shooting a bad guy in the street just because he wants your money will get you an orange jumpsuit.