You could say the same thing about beating the virus with a good old fashioned immune system.
Absolutely. That is a very valid point.
When driving, I like to minimize my risks. I do not drink and drive. I do not drive a vehicle with faulty brakes or steering. I watch every car on the road as if the driver is intent on killing me, and I constantly look for escape routes and watch the width of the shoulder.
Those habits enabled my to escape a headon collision in '83 on a state hiway with my young wife and two children in the car as an apparent drunk was driving in my lane.
The same habits allowed me to prevent a rear end collision on the freeway with an attempted "stoop and squat". Where a guy crossed the white line about ten feet from my front bumper and dynamited his brakes. A rear end collision would have been impossible to avoid, had I not moved to the left line simultaneously with him crossing into the right.
Taking the Covid shot is just another way to minimize MY risk.