He had changed it at the age of seventeen and at the specific moment that witnessed the beginning of his career—when he saw Dan Cody's yacht drop anchor over the most insidious flat on Lake Superior.
So if your car breaks down in winter you'd be dealing with horrible cold, getting stranded hundreds of miles away from civilization, and maybe deal with some pole bear attacks.
It was a disappointing end to a dizzying career, like riding a rollercoaster that reaches its highest peak only to suddenly shut down and leave you stuck and disappointed.
It wants Perseverance to continue drilling and collecting samples, but it can't risk the rover breaking down with the entire rock collection stuck inside the vehicle.