C&WR:
Of course you're right to be gentle with him. When I was a boy in the fifties avid reading was common, and yes, with a torch under the covers. Many of us learned to read well quite early. Prior to B&W TV it was our main form of entertainment, the pictures/flicks (movies) were comparatively rare treats so our imaginations were developed by reading. These days kids have so much more and easier stimulation, so reading is to be nurtured. As far as I'm concerned the best images are in my head! - but that goes back to early development.
Tony.
edit: Regarding Swallows and Amazons, I had a mixed set of stuff going back years, some originating with my older brothers, but my wife bought me a full, hard-backed set some time ago - that's how much I love them! It's the sailing and the childhood freedom. A favourite which I re-read quite recently, is: "We didn't mean to go to sea." This is actually very frightening if viewed from a small-boat sailing point of view, and the way the children handled there situation is fascinating.