This game tries to find out!
It’s a simulation of driving down a rural highway. There’s a red stop signal with a white hand that flashes on the screen after a few moments. The faster you tap any button on your keyboard, the better your score will be.
My scores gave me a driving age as young as 21 and as old as 46 once when I got distracted by one of the animals on the side of the road. (The driving ages range from 18 to 95 from what I could tell).
I’d love to know what your scores are!