My Dad did that with my 3 brothers and I all the time. Sometimes he would bring out a bottle of soda for us to share. Of course, once the soda went through, we were to use the bottle to relieve ourselves, because we certainly couldn't go in the bar.snip... Would stop at a bar and leave us in the car ...snip
Don
Later, when I was a teen, a local couple left their two kids in the car while they were in the bar drinking. The kids found a book of matches and accidently lit the upholstery on fire. They couldn't get out because someone had removed the door handles from the inside of the car, so they died in the fire. The couple was arrested and prosecuted.