I don't understand what the difference is, good & bad. If you gotta defend yourself, it is a bad area, no matter who might say "good".
Some areas are inherently more dangerous than others, but people are mobile.
You know those that slip a LCP into pocket for a trip to store in "good" area but would carry a Glock 19 + spare mag into an area perceived as "bad".? - No thanks.
This thread is encouraging carrying the Glock 19 + spare mag everywhere, regardless of perceived risk.