Driving lessons pretty much assume an adult can control a car, they're mostly about how to safely and legally drive on shared public roads, and that's where I'd expect an 8 year old to be significantly less capable, without evidence to support it except - if 8 year olds were as capable of dealing with situations as adults are, we'd call them adults.
https://en.wikipedia.org/wiki/Lewis_Hamilton#1993%E2%80%9320...
Driving lessons pretty much assume an adult can control a car, they're mostly about how to safely and legally drive on shared public roads, and that's where I'd expect an 8 year old to be significantly less capable, without evidence to support it except - if 8 year olds were as capable of dealing with situations as adults are, we'd call them adults.