So the odds of dying in a car crash is higher than dying from COVID-19 for those under 50.
You cannot compare the odds of a lifetime event to the odds of dying from contracting a specific disease. You drive or ride in a car thousands of times during your life, but you do not catch thousands of infectious diseases. Your chance of dying in a car crash today are negligible; according to the National Safety Council, "In 2018, the death rate was 1.42 per 10,000 vehicles", or "1.22 deaths per 100 million miles driven." But if you are between age 40 and 49, your chance of dying if you catch Covid-19 is 1 in 125. Right now, 1 in 180 people in the US have Covid-19, so there is a real chance of catching it. And there is no guarantee of never catching Covid-19 again once you have recovered; if it is like other coronaviruses, immunity to it wanes over time so that you can catch it again. We have no data now on what will happen in a subsequent infection.