You are vastly over estimating the hazards under a hood. When opening a hood and looking for a problem, filling up a water tank, checking oil or topping up the

You are vastly over estimating the hazards under a hood. When opening a hood and looking for a problem, filling up a water tank, checking oil or topping up the radiator the greatest danger is probably somehow not propping the food open correctly or forgetting to let it cool down first and touching a hot part or fluid and getting a minor burn. Opening a car hood is miles less dangerous than changing a light bulb on a desktop lamp, it's probably even less dangerous than driving the car on the road.