I don't think people think in terms of life expectancy. Do you? Is a 1% chance of dying on your next ride and otherwise living 100 years equivalent to not riding your bike and living 99 years to you?

Edit regarding your comment: Oh, I see why you're confused. I didn't need to do the math because I was talking about a 1-time bike ride as an example to just get the point across -- it's already scary for 1 ride. But if you want the actual math for a lifetime, there's a ~1/5000 lifetime odds of dying in 1 year of biking. That's still pretty damn high. I don't know about you but I'd rather just give up on the 78th expected year of my life and lose the 0.1% chance of dying in the next 5 years.