Experience of young pilot, whose parents have brought him all the gear and he has no idea.
That's a little unfair, though.
He still hasn't grasped the concept of "I have control", "you have control"
Regardless of how many times I tell him to keep his gruby little mits of the controls when mine are on there; there they are, hovering, waiting, itching to take over.
When I've demonstrated landings he's been gazing out of his side window.
The crunch came when he said "I think I'm nearly ready to go solo".
So I had to tell him what was wrong with his circuits (height keeping, speed, directional control on the runway). I think the message has sunk in.