I would rather we don't have to spend precious emergency responder time on preventable injuries and deaths that occur at much higher rates by people not wearing seatbelts. If we can require you wear glasses to drive, we can require you wear a seatbelt as well. When someone dies in an accident because they didn't wear a seatbelt, there is another driver who now has to live with the fact that they killed someone.
Your answer does not refute anything that I said. Because judging from your reasoning, we should ban McDonald's and other bad food, so that people would not get heart attacks and die, so that we wouldn't waste the precious time of first responders, when they could rather attend to other people who actually want to live - those who don't eat poison
