Check out Kodu Game Lab; it was a Microsoft Research project from a number of years ago, and is still maintained. Your son won't need to learn a language, but he will learn some of the core concepts from a visual paradigm.
I think part of it is the guilt of taking time off of work so everything gets dubbed "the flu" to justify it.
I've only had the flu once that I know of after an conference in Las Vegas about 12yrs ago, and it was the worst illness I've ever had. I went into work on day 1, immediately turned around went home, and nearly passed out going up the stairs. The next three days were a fugue of blinking and the shadows from the trees outside moving.
https://web.archive.org/web/20260305161030/https://jido.run/