I'll have to chime in with Harvest Moon as well. Friends of mineral town was and still is my favourite PS1 games and is one of the few PS1 games I still play today. Taught me about commerce, that farming is really easy, bribery being the best way to make friends and taught me to go into nature and scavenge when I'm low on cash and food. That and throwing stuff into rivers and waterfalls will cause Kappas and Goddesses to appear before you.
If not, as long as you think his eyes can take the early 2000's graphical assault, try Morrowind. It has a hell of a lot of inertia but in my opinion, it's way more addicting than either of the later two titles. And it does work on kids(I got into the game when I was 12 and got my little brother addicted to the elder's scrolls games at age 9 thanks to the game)
Another good series is the Monster Rancher series. It's a bit pokemon, cute monsters with deadly powers, mixed with Rocky, with the whole training angle and the fact that the later fights will leave you broken, destroyed but alive( like the end of the first movie) and will require several training montages to even come close to beating(like every other movie in the series)
And if that fails, try some SNES era RPG's
Jerram Fahey said:
I'd recommend one of the Rune Factory titles (probably Frontier) instead of Harvest Moon. It's got all the same farming/girl-wooing that Harvest Moon does, but also has dungeon crawling. It would be a better introduction to RPGs whilst still having the good ol' Harvest Moon guts.
I have heard about that series. How does it blend the two gameplays together and how well does it do it?