North American cars, traditionally, didn't have hand brakes; they had parking brakes that were depressed with the foot and then a lever had to be pulled to release them or you had to step on it again to get it to release. NA cars were a lot bigger, too, for the longest time and this is the kind of brake you see on pick up trucks and the like.
Now, more and more cars actually do have a hand brake. But most of them are also automatic. So while someone might shift into Park, they aren't likely to apply the hand brake, if they have one.
That said, I drive stick. I rarely use the hand brake when stopped at a light. I will shift into neutral and use the hand brake when stopped for a longer period of time in a traffic jam. In fact, I'll quite often turn the car off if it is going to be a while, like waiting at a train crossing.