automatic seat belts
Seatbelts weren’t always commonplace in cars. Early on, many manufacturers offered them as a choice or luxury, and many people that had them didn’t pay much attention to wearing them. During the late 70’s, as the government became more conscious of safety, automatic seat belts were born.
Many of these automatic belts were attached to the door in some manner, so when you entered the car, you needed to slide under the belts. The closing of the door secured the belts automatically as they retracted to their original position.
The problem was that it was so awkward to get into, most people would remove the belts altogether.