I'm an old hand roleplayer and current Dark Heresy GM and I think that all the nice components, the card and dice play could be a good "in" to get my son more interested in his Dad's hobby the thing is I can't find any note of the age range suitability of th egame.
Now I know that the background material (being fantasy horror) could be considered adult but the GW tabletop games are very much geared to his age group plus (some kids in his class at school have already started collecting tabletop armies) so I was wondering whether the rpg is a good fit too. Scenario and campaign content is in the hands of the GM (most likely me) so I can temper things accordingly but are the mechanics easy enough for a group of 9+ year olds to grasp?