I've worked in an Emergency Room. Literally every single person who worked there drove a car. Both trauma surgeons were motorcycle enthusiasts. I'm friends with pulmonologists who smoke, psychiatrists who drink, endocrinologists who are fat.
Having seen the possible consequences of a bad decision first-hand does not, in fact, stop people from making bad decisions.
I'm not talking in hypotheticals here. I'm saying that of the many, many people I know who do in fact work closely with the badly injured victims of traffic accidents every day, not a single one has been scared away from driving.
Having seen the possible consequences of a bad decision first-hand does not, in fact, stop people from making bad decisions.