as a passenger, if i'm sitting in the back at the start of the
journey, i will remain in the back regardless of whether i'm the
last person to alight because it's too troublesome / time-comsuming
to move from the back to the front passenger seat. unless the
driver asks me to do so or the back seats are really
uncomfortable.
as a driver, i dun really mind. but talking to the person in the
back is really strange.