John Bull British

please give any examples..
also, how it works? how has changed in 60 years?

for example..how have British people changed from the more English, polite people to slightly snooty people ? and Americans have gone from John Wayne to Penn and Teller Bull sht..or George Bush or Obama, etc?

how about younger people copying young examples on Real World , Big Brother etc? AND WHY THEY DO THIS?

please explain wha tyou can.

THANKS FOR YOUR ANSWERS!