They keep seeing nodes and want to harvest them because they're shiny... and they see people making stuff and want to do that too. However I think that the difficulty level might be a little high for them just yet, they have to understand the money system and buying stuff first. The game has a difficult learning curve for someone that age, when you consider they're just killing now, then I have to teach them about selling to npc, then getting a retainer, checking market price, selling crystals, getting money back, then figuring out what to buy. Then to craft they need to get ingredients, etc. I'd rather just have them level the jobs to 10, then take their crystals and give them the money back(less 50% handling fee, of course^^).