It's not cost, or difficulty getting a FAC, that blocks young people from getting into stalking, it's a lack of mentors willing to take them out.
Any youngster could tag along with an experienced stalker, at no cost, if there was a stalker happy to introduce them to the sport. Even without a FAC or firearm they could get stuck in with everything else, learn how to gralloch, learn about deer management, learn about safe shooting, and just soak up the atmosphere of being out there in the wilds at daybreak in pursuit of an elusive quarry. They'd be hooked for life before ever taking a shot. And when they turned 17 they could use the stalker's rifle, under supervision, and perhaps take their first deer. Still at no cost to themselves.
But the truth of the matter is that experienced stalkers, on the whole, are not providing this opportunity.
Part of it is down to secrecy: Many stalkers hide what they do from their neighbours, so the little lad who lives three doors down and is desperately keen to get into shooting but doesn't know who to ask, never gets the opportunity.
Another part of it is jealousy: The reluctance to share access to a hard-won permission.
So it's definitely not cost that's the barrier. The barriers are imposed by existing stalkers.