I am constantly talking about this issue. Believe me it is the same in OC and LA. I travel a lot and also notice that people are much more cold in So Cal. My theory (based on nothing) is people are much more stressed about their life here. May have to do with cost of living, etc.
Many studies of the great depression showed people were actually relieved the depression came because the values reverted back to people helping each other. Many people were living beyond their means in the 20’s and values were all about money. Seems prescient to me.