Its a different world
Let's keep this in perspective. The first people living on Mars are not candidates for a quiet retirement. They will face a number of risks, including (but not limited to) their rocket blowing up, their rocket crashing on arrival, decompression by a punctured space suit, decompression of their accommodation module, running out of oxygen or water or food, a war on Earth interrupting their supply ships, and so on and so on. If they live long enough to die of cancer they will be lucky.
Biting the hand that feeds IT
