Can you gage people from a city based solely on the flight to/from?

Annoying/inconsiderate things I've seen today on a SFO-DFW flight. Believe most passengers were flying out from Cali on business

Pre Flight

PA announcement stating flight completely full, offers free bag check for carry-on bags, advises groups 3 and 4 that their bags will likely not fit - to which no one takes the free check in (not a big deal - just not going to turn out well)

During boarding, of the 6 people in front of me (that I could hear), 2 of them independently try to beg the ticket scanner lady for different seats, each holding up the line to do it.

Towards the end of boarding, group 3/4 passengers complain for 5 minutes before reluctantly giving up their bags for checking - plane now 5 minutes late to depart

Most of flight

The 2 ladies in the row in front of me give a 3.5 hour dissertation on how Eisenhower negotiated with aliens to reduce nuclear arms in exchange for tricks on space exploration.

End of flight

"In preparation for landing, the captain has turned on the fasten seat-belt sign...." - so far, so good this portion of flight

"Flight attendants, prepare for landing...." - In Californian apparently this means this is the time for 20+ passengers to get up and go to the bathroom

(Distinct sound of landing gear deploying) - Ok, now the lady in the front row of coach turns off her lap top and tries to put it in the overhead bin, to which she needs help opening. Flight attendants didn't notice before this, they were too busy dodging traffic to/from the lavatories.