Pretend you're Hazel Nilson. It's 1955, you're in your 40s, and you're shopping for a new Ford. The salesman is telling you about the new options available for the first time this year: Factory-installed air conditioning, wooden appliqué side mouldings, and this strap on the seat that you can snap around your waist to keep you from flying out the windshield in a collision. Seems like it might be uncomfortable, and you've never flown out the windshield before anyway, but...
Well, you'd sure like to live to see the Cubs win a World Series. You get the seatbelts.