Ever noticed everyone has a different style when they leave their car?
Some press the button and watch the door lock go in (I do this except at home)
Some walk away, turn around, then press their button
Others just walk off and casually press the button in their pocket without looking back
How do YOU do it?
BTW: ever considered that an actuator on a door might fail, and it actually stays open? If your locks are fully internal then the only way you'll know is if you try all of the doors from the outside...