It would trickle down. Maybe not straight into the forges that aren't core, but the smiths in a magical forge will still need qualified workers to do the less than fun tasks that keeps the magical forge running at full capacity. Enchantments are a cheap way to pay for services. The adepts/ journeymen learn from the masters who work the forge. Later on, they in turn get free labor with the occasional enchantment, a mat in a corner and some food. As for support network, dwarves are tough. Just look at the future dwarf chief - four years old (which seems to be the human equivalent of two) and already moving out to make his own way. Admittedly that's an extreme example XD Still, dwarves are a lot more stobborn and steady than humans are. Once they set a goal they pursue it far longer than most of us would. Undoubtedly a lot of them get into trouble that way.