My son's almost 4, on his birthday him an old tower(hooked up to the lounge tv) with a MES emulator. My plan is to approximately every 6 months upgrade his emul

My son's almost 4, on his birthday him an old tower(hooked up to the lounge tv) with a MES emulator. My plan is to approximately every 6 months upgrade his emulators to next gen. Between SNES and N64 I'll introduce him to dos games. Then basic to show him how to control basic output and PC speaker(that's going to be a hunt). I'll see how he likes all that stuff and if he is interested, steer him through how I had access. I know once he hits 8ish he and his friends will be into whatever is popular at the time online wise, but it's the only way I can figure to see if he is interested enough to try programming.