I second this. Although I think maybe 4 or 5 may be a more apt age, my father gave me his old curtis screwdriver set, and let me take apart various electronics they were phasing out at work. Your local recycling center may also provide some good scrap to work with. I know it's less and less common nowadays, but you should try to give him older electronics, as they have larger components, and more obvious traces to follow with a finger. I'd assume there are still plenty of people throwing out old handsets and dvrs at your local recycling center.
Our hardware store carried them, and it comes with solder and an iron. After learning how to solder, I taught myself how to scrap old motherboards, and amassed a sizeable collection of used components which I still reuse now. We weren't too component about this thing when I was little, but you should probably also get him some gloves and a hepa filter hood so he dosen't burn himself or inhale anything bad.
Also here is possibly the most influential gift my father ever got for me: https://www.amazon.com/dp/B0002LUAL6?tag=duckduckgo-d-20&lin...
Our hardware store carried them, and it comes with solder and an iron. After learning how to solder, I taught myself how to scrap old motherboards, and amassed a sizeable collection of used components which I still reuse now. We weren't too component about this thing when I was little, but you should probably also get him some gloves and a hepa filter hood so he dosen't burn himself or inhale anything bad.