Alternative opinion. It's like riding around in a pedal-car.
...then be handed the keys
A 2-3M Slingy foil won't teach you sh/t. And if you cannot intellectualize: Pull Right = Go Right from this sentence; then stay the hell away from anywhere other people kite because you will ruin it for them.
...and laying on the grass flying your foil with your eyes closed is Bullsh/t. Totally meaningless
.. (I did it - I know.)
There is no parallel to Doing It
. The only good way - is to have a legitimate instructor standing next to you tell you what you are about to experience with a real kite - then feeling it.
We have a local instructor Gary who taught his old girlfriend. He gave her such confidence that when guys are standing around with their ball shrunk to the size of raisins, hemming and hawing about a 9 or 10, she's already asking for a launch of her 12.
....BTW: A great small kite is a 5-line, 5M Slingy Fuel. It's a Pony compared to a Percheron but pullin' little sucker. I'm sure there are others...