Your kid is 7. I'm pretty sure hat I was eating dirt when I was 7. If he has showed you he's interested in programming then go ahead, but make sure you're not projecting your own interests onto your kid. It'll lead to resentment in 7 or 8 years.
As a counterpoint, I started programming on my own at 7 with no guidance. Mainly because my IBM PC booted into a BASIC window if you didn't put the DOS disk in. I asked my mom to get my some magazines from the library so I could copy the games in them. So it's not totally odd for a 7 year old (or I was odd, which is quite possible).
Same here!
Getting started in programming seems so much more daunting these days.