Why can't the front of the car face the gate

There is a saying that the front of the car can't face the gate everywhere. The origin of this statement is not clear. The statement is different, and there is no fixed statement. Some people say that the front of the car facing the gate will block their own or others' wealth, some say that the front of the car facing the gate will bring them bad luck and suffocation, and some say that the front of the car facing the gate means an accident because the car hit the door.