My mom worked graveyard shift for many years and she normally went out the back door to the back door of the garage. No door directly from the house to the garage. She would get in her car in the garage, and only when locked in the car in the garage would she open the big garage door. But the back door was built to be used, it had it's own door bell with a unique ring. We used to get milk delivered in the 1960's and they delivered to the back door and rang the bell.
My house has a side garage door that we never use, I have it blocked off for security reasons. And we have a door from the garage right into the kitchen that we use frequently.