I never knew people DIDN'T use the parking brake. I learned to drive that way and was surprised years later when I found a buddy who never used it. I just took engaging the parking brake as part of the "process"...like taking the keys out of the ignition.
dunno. My first automatic trans car was the vehicross. It was honestly the second car I've ever driven that wasn't manual. I learned to drive a certain way and couldn't easily drive another (I drive LOTS of cars...but my family always chose manual over auto and all of the cars I wanted to drive that were other people's were performance based ..i.e. requiring the driver to, well, DRIVE..changing gears is as part of the process as steering is.)
People don't think there's a transition from manual to auto like there is to auto to manual. I disagree. I kept shifting to neautral and mashing on the brake (i dont know why I compensated for my dead clutch leg by mashing hard on the brake with my rt foot....but I did).
Anyway. point of all that? backgrounds and experience is different all around...we take practice for granted. What you know to be right, some people get away with not doing. I'm sure there are people that don't know they have to change their oil...and it works for them...